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cef/libcef/browser/render_widget_host_view_osr.cc

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// Copyright (c) 2012 The Chromium Embedded Framework Authors.
// Portions copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "libcef/browser/backing_store_osr.h"
#include "libcef/browser/browser_host_impl.h"
#include "libcef/browser/render_widget_host_view_osr.h"
#include "base/message_loop/message_loop.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/common/cursors/webcursor.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/render_view_host.h"
#include "third_party/WebKit/public/platform/WebScreenInfo.h"
#include "ui/gfx/size_conversions.h"
namespace {
const float kDefaultScaleFactor = 1.0;
static blink::WebScreenInfo webScreenInfoFrom(const CefScreenInfo& src) {
blink::WebScreenInfo webScreenInfo;
webScreenInfo.deviceScaleFactor = src.device_scale_factor;
webScreenInfo.depth = src.depth;
webScreenInfo.depthPerComponent = src.depth_per_component;
webScreenInfo.isMonochrome = src.is_monochrome ? true : false;
webScreenInfo.rect = blink::WebRect(src.rect.x, src.rect.y,
src.rect.width, src.rect.height);
webScreenInfo.availableRect = blink::WebRect(src.available_rect.x,
src.available_rect.y,
src.available_rect.width,
src.available_rect.height);
return webScreenInfo;
}
} // namespace
///////////////////////////////////////////////////////////////////////////////
// CefRenderWidgetHostViewOSR, public:
CefRenderWidgetHostViewOSR::CefRenderWidgetHostViewOSR(
content::RenderWidgetHost* widget)
: weak_factory_(this),
render_widget_host_(content::RenderWidgetHostImpl::From(widget)),
parent_host_view_(NULL),
popup_host_view_(NULL),
about_to_validate_and_paint_(false)
#if defined(OS_MACOSX)
, text_input_context_osr_mac_(NULL)
#endif
{
DCHECK(render_widget_host_);
render_widget_host_->SetView(this);
// CefBrowserHostImpl might not be created at this time for popups.
if (render_widget_host_->IsRenderView()) {
browser_impl_ = CefBrowserHostImpl::GetBrowserForHost(
content::RenderViewHost::From(render_widget_host_));
}
}
CefRenderWidgetHostViewOSR::~CefRenderWidgetHostViewOSR() {
}
// RenderWidgetHostView implementation.
gfx::Size CefRenderWidgetHostViewOSR::GetPhysicalBackingSize() const {
return gfx::ToCeiledSize(gfx::ScaleSize(GetViewBounds().size(),
GetDeviceScaleFactor()));
}
void CefRenderWidgetHostViewOSR::InitAsChild(gfx::NativeView parent_view) {
}
content::RenderWidgetHost*
CefRenderWidgetHostViewOSR::GetRenderWidgetHost() const {
return render_widget_host_;
}
void CefRenderWidgetHostViewOSR::SetSize(const gfx::Size& size) {
}
void CefRenderWidgetHostViewOSR::SetBounds(const gfx::Rect& rect) {
}
gfx::NativeView CefRenderWidgetHostViewOSR::GetNativeView() const {
return NULL;
}
gfx::NativeViewId CefRenderWidgetHostViewOSR::GetNativeViewId() const {
if (!browser_impl_.get())
return gfx::NativeViewId();
// This Id is used on Windows as HWND to retrieve monitor info
// If this Id is not a valid window, the main screen monitor info is used
return reinterpret_cast<gfx::NativeViewId>(browser_impl_->GetWindowHandle());
}
gfx::NativeViewAccessible
CefRenderWidgetHostViewOSR::GetNativeViewAccessible() {
return gfx::NativeViewAccessible();
}
bool CefRenderWidgetHostViewOSR::HasFocus() const {
return false;
}
bool CefRenderWidgetHostViewOSR::IsSurfaceAvailableForCopy() const {
return false;
}
void CefRenderWidgetHostViewOSR::Show() {
WasShown();
}
void CefRenderWidgetHostViewOSR::Hide() {
WasHidden();
}
bool CefRenderWidgetHostViewOSR::IsShowing() {
return true;
}
gfx::Rect CefRenderWidgetHostViewOSR::GetViewBounds() const {
if (IsPopupWidget())
return popup_position_;
if (!browser_impl_.get())
return gfx::Rect();
CefRect rc;
browser_impl_->GetClient()->GetRenderHandler()->GetViewRect(
browser_impl_->GetBrowser(), rc);
return gfx::Rect(rc.x, rc.y, rc.width, rc.height);
}
// Implementation of RenderWidgetHostViewPort.
void CefRenderWidgetHostViewOSR::InitAsPopup(
RenderWidgetHostView* parent_host_view,
const gfx::Rect& pos) {
parent_host_view_ = static_cast<CefRenderWidgetHostViewOSR*>(
parent_host_view);
browser_impl_ = parent_host_view_->get_browser_impl();
if (!browser_impl_.get())
return;
parent_host_view_->CancelWidget();
parent_host_view_->set_popup_host_view(this);
NotifyShowWidget();
popup_position_ = pos;
NotifySizeWidget();
}
void CefRenderWidgetHostViewOSR::InitAsFullscreen(
RenderWidgetHostView* reference_host_view) {
NOTREACHED() << "Fullscreen widgets are not supported in OSR";
}
void CefRenderWidgetHostViewOSR::WasShown() {
if (render_widget_host_)
render_widget_host_->WasShown();
}
void CefRenderWidgetHostViewOSR::WasHidden() {
if (render_widget_host_)
render_widget_host_->WasHidden();
}
void CefRenderWidgetHostViewOSR::MovePluginWindows(
const gfx::Vector2d& scroll_offset,
const std::vector<content::WebPluginGeometry>& moves) {
}
void CefRenderWidgetHostViewOSR::Focus() {
}
void CefRenderWidgetHostViewOSR::Blur() {
}
void CefRenderWidgetHostViewOSR::UpdateCursor(
const content::WebCursor& cursor) {
TRACE_EVENT0("libcef", "CefRenderWidgetHostViewOSR::UpdateCursor");
if (!browser_impl_.get())
return;
#if defined(USE_AURA)
content::WebCursor web_cursor = cursor;
ui::PlatformCursor platform_cursor;
if (web_cursor.IsCustom()) {
// |web_cursor| owns the resulting |platform_cursor|.
platform_cursor = web_cursor.GetPlatformCursor();
} else {
content::WebCursor::CursorInfo cursor_info;
cursor.GetCursorInfo(&cursor_info);
platform_cursor = browser_impl_->GetPlatformCursor(cursor_info.type);
}
browser_impl_->GetClient()->GetRenderHandler()->OnCursorChange(
browser_impl_->GetBrowser(), platform_cursor);
#elif defined(OS_MACOSX) || defined(TOOLKIT_GTK)
// |web_cursor| owns the resulting |native_cursor|.
content::WebCursor web_cursor = cursor;
CefCursorHandle native_cursor = web_cursor.GetNativeCursor();
browser_impl_->GetClient()->GetRenderHandler()->OnCursorChange(
browser_impl_->GetBrowser(), native_cursor);
#else
// TODO(port): Implement this method to work on other platforms as part of
// off-screen rendering support.
NOTREACHED();
#endif
}
void CefRenderWidgetHostViewOSR::SetIsLoading(bool is_loading) {
}
#if !defined(OS_MACOSX)
void CefRenderWidgetHostViewOSR::TextInputTypeChanged(
ui::TextInputType type,
ui::TextInputMode mode,
bool can_compose_inline) {
}
void CefRenderWidgetHostViewOSR::ImeCancelComposition() {
}
#if defined(OS_WIN) || defined(USE_AURA)
void CefRenderWidgetHostViewOSR::ImeCompositionRangeChanged(
const gfx::Range& range,
const std::vector<gfx::Rect>& character_bounds) {
}
#endif
#endif // !defined(OS_MACOSX)
void CefRenderWidgetHostViewOSR::DidUpdateBackingStore(
const gfx::Rect& scroll_rect,
const gfx::Vector2d& scroll_delta,
const std::vector<gfx::Rect>& copy_rects,
const std::vector<ui::LatencyInfo>& latency_info) {
if (!scroll_rect.IsEmpty()) {
std::vector<gfx::Rect> dirty_rects(copy_rects);
dirty_rects.push_back(scroll_rect);
Paint(dirty_rects);
} else {
Paint(copy_rects);
}
}
void CefRenderWidgetHostViewOSR::RenderProcessGone(
base::TerminationStatus status,
int error_code) {
render_widget_host_ = NULL;
parent_host_view_ = NULL;
popup_host_view_ = NULL;
}
#if defined(OS_WIN) && !defined(USE_AURA)
void CefRenderWidgetHostViewOSR::WillWmDestroy() {
// Will not be called if GetNativeView returns NULL.
NOTREACHED();
}
#endif
#if defined(OS_WIN) && defined(USE_AURA)
void CefRenderWidgetHostViewOSR::SetParentNativeViewAccessible(
gfx::NativeViewAccessible accessible_parent) {
}
gfx::NativeViewId
CefRenderWidgetHostViewOSR::GetParentForWindowlessPlugin() const {
if (browser_impl_.get()) {
return reinterpret_cast<gfx::NativeViewId>(
browser_impl_->GetWindowHandle());
}
return NULL;
}
#endif // defined(OS_WIN) && defined(USE_AURA)
void CefRenderWidgetHostViewOSR::GetScreenInfo(blink::WebScreenInfo* results) {
if (!browser_impl_.get())
return;
CefScreenInfo screen_info(
kDefaultScaleFactor, 0, 0, false, CefRect(), CefRect());
CefRefPtr<CefRenderHandler> handler =
browser_impl_->client()->GetRenderHandler();
if (!handler->GetScreenInfo(browser_impl_.get(), screen_info) ||
screen_info.rect.width == 0 ||
screen_info.rect.height == 0 ||
screen_info.available_rect.width == 0 ||
screen_info.available_rect.height == 0) {
// If a screen rectangle was not provided, try using the view rectangle
// instead. Otherwise, popup views may be drawn incorrectly, or not at all.
CefRect screenRect;
if (!handler->GetViewRect(browser_impl_.get(), screenRect)) {
NOTREACHED();
screenRect = CefRect();
}
if (screen_info.rect.width == 0 && screen_info.rect.height == 0)
screen_info.rect = screenRect;
if (screen_info.available_rect.width == 0 &&
screen_info.available_rect.height == 0)
screen_info.available_rect = screenRect;
}
*results = webScreenInfoFrom(screen_info);
}
gfx::Rect CefRenderWidgetHostViewOSR::GetBoundsInRootWindow() {
if (!browser_impl_.get())
return gfx::Rect();
CefRect rc;
if (browser_impl_->GetClient()->GetRenderHandler()->GetRootScreenRect(
browser_impl_->GetBrowser(), rc)) {
return gfx::Rect(rc.x, rc.y, rc.width, rc.height);
}
return gfx::Rect();
}
void CefRenderWidgetHostViewOSR::CreateBrowserAccessibilityManagerIfNeeded() {
}
void CefRenderWidgetHostViewOSR::Destroy() {
if (IsPopupWidget()) {
if (parent_host_view_)
parent_host_view_->CancelWidget();
} else {
CancelWidget();
}
delete this;
}
void CefRenderWidgetHostViewOSR::SetTooltipText(
const base::string16& tooltip_text) {
if (!browser_impl_.get())
return;
CefString tooltip(tooltip_text);
CefRefPtr<CefDisplayHandler> handler =
browser_impl_->GetClient()->GetDisplayHandler();
if (handler.get()) {
handler->OnTooltip(browser_impl_->GetBrowser(), tooltip);
}
}
void CefRenderWidgetHostViewOSR::SelectionBoundsChanged(
const ViewHostMsg_SelectionBounds_Params& params) {
}
void CefRenderWidgetHostViewOSR::ScrollOffsetChanged() {
if (!browser_impl_.get())
return;
browser_impl_->GetClient()->GetRenderHandler()->
OnScrollOffsetChanged(browser_impl_.get());
}
content::BackingStore* CefRenderWidgetHostViewOSR::AllocBackingStore(
const gfx::Size& size) {
return render_widget_host_ ?
new BackingStoreOSR(render_widget_host_, size, GetDeviceScaleFactor()) :
NULL;
}
void CefRenderWidgetHostViewOSR::CopyFromCompositingSurface(
const gfx::Rect& src_subrect,
const gfx::Size& dst_size,
const base::Callback<void(bool, const SkBitmap&)>& callback,
const SkBitmap::Config config) {
}
void CefRenderWidgetHostViewOSR::CopyFromCompositingSurfaceToVideoFrame(
const gfx::Rect& src_subrect,
const scoped_refptr<media::VideoFrame>& target,
const base::Callback<void(bool)>& callback) {
}
bool CefRenderWidgetHostViewOSR::CanCopyToVideoFrame() const {
return false;
}
void CefRenderWidgetHostViewOSR::OnAcceleratedCompositingStateChange() {
}
void CefRenderWidgetHostViewOSR::AcceleratedSurfaceInitialized(
int host_id, int route_id) {
}
void CefRenderWidgetHostViewOSR::SetHasHorizontalScrollbar(
bool has_horizontal_scrollbar) {
}
void CefRenderWidgetHostViewOSR::SetScrollOffsetPinning(
bool is_pinned_to_left, bool is_pinned_to_right) {
}
gfx::GLSurfaceHandle CefRenderWidgetHostViewOSR::GetCompositingSurface() {
return gfx::GLSurfaceHandle();
}
void CefRenderWidgetHostViewOSR::AcceleratedSurfaceBuffersSwapped(
const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
int gpu_host_id) {
}
void CefRenderWidgetHostViewOSR::AcceleratedSurfacePostSubBuffer(
const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
int gpu_host_id) {
}
void CefRenderWidgetHostViewOSR::AcceleratedSurfaceSuspend() {
}
void CefRenderWidgetHostViewOSR::AcceleratedSurfaceRelease() {
}
bool CefRenderWidgetHostViewOSR::HasAcceleratedSurface(
const gfx::Size& desired_size) {
return false;
}
bool CefRenderWidgetHostViewOSR::LockMouse() {
return false;
}
void CefRenderWidgetHostViewOSR::UnlockMouse() {
}
#if defined(OS_WIN) && !defined(USE_AURA)
void CefRenderWidgetHostViewOSR::SetClickthroughRegion(SkRegion* region) {
}
#endif
void CefRenderWidgetHostViewOSR::SetBackground(const SkBitmap& background) {
if (!render_widget_host_)
return;
RenderWidgetHostViewBase::SetBackground(background);
render_widget_host_->SetBackground(background);
}
void CefRenderWidgetHostViewOSR::Invalidate(const gfx::Rect& rect,
CefBrowserHost::PaintElementType type) {
TRACE_EVENT1("libcef", "CefRenderWidgetHostViewOSR::Invalidate", "type", type);
if (!IsPopupWidget() && type == PET_POPUP) {
if (popup_host_view_)
popup_host_view_->Invalidate(rect, type);
return;
}
std::vector<gfx::Rect> dirtyRects;
dirtyRects.push_back(rect);
Paint(dirtyRects);
}
void CefRenderWidgetHostViewOSR::Paint(
const std::vector<gfx::Rect>& copy_rects) {
TRACE_EVENT1("libcef", "CefRenderWidgetHostViewOSR::Paint", "rects", copy_rects.size());
if (about_to_validate_and_paint_ ||
!browser_impl_.get() ||
!render_widget_host_) {
pending_update_rects_.insert(pending_update_rects_.end(),
copy_rects.begin(), copy_rects.end());
return;
}
about_to_validate_and_paint_ = true;
BackingStoreOSR* backing_store =
BackingStoreOSR::From(render_widget_host_->GetBackingStore(true));
about_to_validate_and_paint_ = false;
if (backing_store) {
const gfx::Rect client_rect(backing_store->size());
SkRegion damaged_rgn;
for (size_t i = 0; i < copy_rects.size(); ++i) {
SkIRect skRect = SkIRect::MakeLTRB(
copy_rects[i].x(), copy_rects[i].y(),
copy_rects[i].right(), copy_rects[i].bottom());
damaged_rgn.op(skRect, SkRegion::kUnion_Op);
}
for (size_t i = 0; i < pending_update_rects_.size(); ++i) {
SkIRect skRect = SkIRect::MakeLTRB(
pending_update_rects_[i].x(), pending_update_rects_[i].y(),
pending_update_rects_[i].right(), pending_update_rects_[i].bottom());
damaged_rgn.op(skRect, SkRegion::kUnion_Op);
}
pending_update_rects_.clear();
CefRenderHandler::RectList rcList;
SkRegion::Cliperator iterator(damaged_rgn,
SkIRect::MakeWH(client_rect.width(), client_rect.height()));
for (; !iterator.done(); iterator.next()) {
const SkIRect& r = iterator.rect();
rcList.push_back(
CefRect(r.left(), r.top(), r.width(), r.height()));
}
if (rcList.size() == 0)
return;
browser_impl_->GetClient()->GetRenderHandler()->OnPaint(
browser_impl_->GetBrowser(),
IsPopupWidget() ? PET_POPUP : PET_VIEW,
rcList,
backing_store->getPixels(),
client_rect.width(),
client_rect.height());
}
}
bool CefRenderWidgetHostViewOSR::InstallTransparency() {
if (browser_impl_.get() && browser_impl_->IsTransparent()) {
SkBitmap bg;
bg.setConfig(SkBitmap::kARGB_8888_Config, 1, 1); // 1x1 alpha bitmap.
bg.allocPixels();
bg.eraseARGB(0x00, 0x00, 0x00, 0x00);
SetBackground(bg);
return true;
}
return false;
}
void CefRenderWidgetHostViewOSR::CancelWidget() {
if (IsPopupWidget()) {
if (render_widget_host_)
render_widget_host_->LostCapture();
if (browser_impl_.get()) {
NotifyHideWidget();
browser_impl_ = NULL;
}
if (parent_host_view_) {
parent_host_view_->set_popup_host_view(NULL);
parent_host_view_ = NULL;
}
if (!weak_factory_.HasWeakPtrs()) {
base::MessageLoop::current()->PostTask(FROM_HERE,
base::Bind(&CefRenderWidgetHostViewOSR::ShutdownHost,
weak_factory_.GetWeakPtr()));
}
} else if (popup_host_view_) {
popup_host_view_->CancelWidget();
}
}
void CefRenderWidgetHostViewOSR::NotifyShowWidget() {
if (browser_impl_.get()) {
browser_impl_->GetClient()->GetRenderHandler()->OnPopupShow(
browser_impl_->GetBrowser(), true);
}
}
void CefRenderWidgetHostViewOSR::NotifyHideWidget() {
if (browser_impl_.get()) {
browser_impl_->GetClient()->GetRenderHandler()->OnPopupShow(
browser_impl_->GetBrowser(), false);
}
}
void CefRenderWidgetHostViewOSR::NotifySizeWidget() {
if (browser_impl_.get()) {
CefRect widget_pos(popup_position_.x(), popup_position_.y(),
popup_position_.width(), popup_position_.height());
browser_impl_->GetClient()->GetRenderHandler()->OnPopupSize(
browser_impl_->GetBrowser(), widget_pos);
}
}
CefRefPtr<CefBrowserHostImpl>
CefRenderWidgetHostViewOSR::get_browser_impl() const {
return browser_impl_;
}
void CefRenderWidgetHostViewOSR::set_browser_impl(
CefRefPtr<CefBrowserHostImpl> browser) {
browser_impl_ = browser;
}
void CefRenderWidgetHostViewOSR::set_popup_host_view(
CefRenderWidgetHostViewOSR* popup_view) {
popup_host_view_ = popup_view;
}
void CefRenderWidgetHostViewOSR::ShutdownHost() {
weak_factory_.InvalidateWeakPtrs();
if (render_widget_host_)
render_widget_host_->Shutdown();
// Do not touch any members at this point, |this| has been deleted.
}
void CefRenderWidgetHostViewOSR::set_parent_host_view(
CefRenderWidgetHostViewOSR* parent_view) {
parent_host_view_ = parent_view;
}
void CefRenderWidgetHostViewOSR::SendKeyEvent(
const content::NativeWebKeyboardEvent& event) {
TRACE_EVENT0("libcef", "CefRenderWidgetHostViewOSR::SendKeyEvent");
if (!render_widget_host_)
return;
render_widget_host_->ForwardKeyboardEvent(event);
}
void CefRenderWidgetHostViewOSR::SendMouseEvent(
const blink::WebMouseEvent& event) {
TRACE_EVENT0("libcef", "CefRenderWidgetHostViewOSR::SendMouseEvent");
if (!IsPopupWidget() && popup_host_view_) {
if (popup_host_view_->popup_position_.Contains(event.x, event.y)) {
blink::WebMouseEvent popup_event(event);
popup_event.x -= popup_host_view_->popup_position_.x();
popup_event.y -= popup_host_view_->popup_position_.y();
popup_event.windowX = popup_event.x;
popup_event.windowY = popup_event.y;
popup_host_view_->SendMouseEvent(popup_event);
return;
}
}
if (!render_widget_host_)
return;
render_widget_host_->ForwardMouseEvent(event);
}
void CefRenderWidgetHostViewOSR::SendMouseWheelEvent(
const blink::WebMouseWheelEvent& event) {
TRACE_EVENT0("libcef", "CefRenderWidgetHostViewOSR::SendMouseWheelEvent");
if (!IsPopupWidget() && popup_host_view_) {
if (popup_host_view_->popup_position_.Contains(event.x, event.y)) {
blink::WebMouseWheelEvent popup_event(event);
popup_event.x -= popup_host_view_->popup_position_.x();
popup_event.y -= popup_host_view_->popup_position_.y();
popup_event.windowX = popup_event.x;
popup_event.windowY = popup_event.y;
popup_host_view_->SendMouseWheelEvent(popup_event);
return;
} else {
// scrolling outside the popup widget, will destroy widget
CancelWidget();
}
}
if (!render_widget_host_)
return;
render_widget_host_->ForwardWheelEvent(event);
}
void CefRenderWidgetHostViewOSR::OnScreenInfoChanged() {
TRACE_EVENT0("libcef", "CefRenderWidgetHostViewOSR::OnScreenInfoChanged");
if (!render_widget_host_)
return;
BackingStoreOSR* backing_store =
BackingStoreOSR::From(render_widget_host_->GetBackingStore(true));
if (backing_store)
backing_store->ScaleFactorChanged(GetDeviceScaleFactor());
// What could be taken from UpdateScreenInfo(window_) - updates the renderer
// cached rectangles
//render_widget_host_->SendScreenRects();
render_widget_host_->NotifyScreenInfoChanged();
// We might want to change the cursor scale factor here as well - see the
// cache for the current_cursor_, as passed by UpdateCursor from the renderer
// in the rwhv_aura (current_cursor_.SetScaleFactor)
}
float CefRenderWidgetHostViewOSR::GetDeviceScaleFactor() const {
if (!browser_impl_.get())
return kDefaultScaleFactor;
CefScreenInfo screen_info(
kDefaultScaleFactor, 0, 0, false, CefRect(), CefRect());
if (!browser_impl_->GetClient()->GetRenderHandler()->GetScreenInfo(
browser_impl_->GetBrowser(), screen_info)) {
// Use the default
return kDefaultScaleFactor;
}
return screen_info.device_scale_factor;
}
#if defined(OS_MACOSX)
bool CefRenderWidgetHostViewOSR::PostProcessEventForPluginIme(
const content::NativeWebKeyboardEvent& event) {
return false;
}
#endif
#if defined(OS_MACOSX)
void CefRenderWidgetHostViewOSR::SetActive(bool active) {
}
void CefRenderWidgetHostViewOSR::SetTakesFocusOnlyOnMouseDown(bool flag) {
}
void CefRenderWidgetHostViewOSR::SetWindowVisibility(bool visible) {
}
void CefRenderWidgetHostViewOSR::WindowFrameChanged() {
}
void CefRenderWidgetHostViewOSR::ShowDefinitionForSelection() {
}
bool CefRenderWidgetHostViewOSR::SupportsSpeech() const {
return false;
}
void CefRenderWidgetHostViewOSR::SpeakSelection() {
}
bool CefRenderWidgetHostViewOSR::IsSpeaking() const {
return false;
}
void CefRenderWidgetHostViewOSR::StopSpeaking() {
}
#endif // defined(OS_MACOSX)
#if defined(TOOLKIT_GTK)
GdkEventButton* CefRenderWidgetHostViewOSR::GetLastMouseDown() {
return NULL;
}
gfx::NativeView CefRenderWidgetHostViewOSR::BuildInputMethodsGtkMenu() {
return NULL;
}
#endif // defined(TOOLKIT_GTK)
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