Add chrome runtime support for more callbacks and ceftests (see issue #2969)

This change adds support for:
- Protocol and request handling.
- Loading and navigation events.
- Display and focus events.
- Mouse/keyboard events.
- Popup browsers.
- Callbacks in the renderer process.
- Misc. functionality required for ceftests.

This change also adds a new CefBrowserProcessHandler::GetCookieableSchemes
callback for configuring global state that will be applied to all
CefCookieManagers by default. This global callback is currently required by the
chrome runtime because the primary ProfileImpl is created via
ChromeBrowserMainParts::PreMainMessageLoopRun (CreatePrimaryProfile) before
OnContextCreated can be called.

ProfileImpl will use the "C:\Users\[user]\AppData\Local\CEF\User Data\Default"
directory by default (on Windows). Cookies may persist in this directory when
running ceftests and may need to be manually deleted if those tests fail.

Remaining work includes:
- Support for client-created request contexts.
- Embedding the browser in a Views hierarchy (cefclient support).
- TryCloseBrowser and DoClose support.
- Most of the CefSettings configuration.
- DevTools protocol and window control (ShowDevTools, ExecuteDevToolsMethod).
- CEF-specific WebUI pages (about, license, webui-hosts).
- Context menu customization (CefContextMenuHandler).
- Auto resize (SetAutoResizeEnabled).
- Zoom settings (SetZoomLevel).
- File dialog runner (RunFileDialog).
- File and JS dialog handlers (CefDialogHandler, CefJSDialogHandler).
- Extension loading (LoadExtension, etc).
- Plugin loading (OnBeforePluginLoad).
- Widevine loading (CefRegisterWidevineCdm).
- PDF and print preview does not display.
- Crash reporting is untested.
- Mac: Web content loads but does not display.

The following ceftests are now passing when run with the
"--enable-chrome-runtime" command-line flag:

CorsTest.*
DisplayTest.*:-DisplayTest.AutoResize
DOMTest.*
DraggableRegionsTest.*
ImageTest.*
MessageRouterTest.*
NavigationTest.*
ParserTest.*
RequestContextTest.*Global*
RequestTest.*
ResourceManagerTest.*
ResourceRequestHandlerTest.*
ResponseTest.*
SchemeHandlerTest.*
ServerTest.*
StreamResourceHandlerTest.*
StreamTest.*
StringTest.*
TaskTest.*
TestServerTest.*
ThreadTest.*
URLRequestTest.*Global*
V8Test.*:-V8Test.OnUncaughtExceptionDevTools
ValuesTest.*
WaitableEventTest.*
XmlReaderTest.*
ZipReaderTest.*

libcef/browser/browser_platform_delegate.cc

@@ -14,6 +14,13 @@ CefBrowserPlatformDelegate::~CefBrowserPlatformDelegate() {
   DCHECK(!browser_);
 }
 
+content::WebContents* CefBrowserPlatformDelegate::CreateWebContents(
+    CefBrowserCreateParams& create_params,
+    bool& own_web_contents) {
+  NOTREACHED();
+  return nullptr;
+}
+
 void CefBrowserPlatformDelegate::CreateViewForWebContents(
     content::WebContentsView** view,
     content::RenderViewHostDelegateView** delegate_view) {
@@ -57,7 +64,7 @@ void CefBrowserPlatformDelegate::RenderViewCreated(
 
 void CefBrowserPlatformDelegate::RenderViewReady() {}
 
-void CefBrowserPlatformDelegate::BrowserCreated(AlloyBrowserHostImpl* browser) {
+void CefBrowserPlatformDelegate::BrowserCreated(CefBrowserHostBase* browser) {
   // We should have an associated WebContents at this point.
   DCHECK(web_contents_);
 
@@ -83,8 +90,7 @@ void CefBrowserPlatformDelegate::NotifyBrowserCreated() {}
 
 void CefBrowserPlatformDelegate::NotifyBrowserDestroyed() {}
 
-void CefBrowserPlatformDelegate::BrowserDestroyed(
-    AlloyBrowserHostImpl* browser) {
+void CefBrowserPlatformDelegate::BrowserDestroyed(CefBrowserHostBase* browser) {
   // WebContentsDestroyed should already be called.
   DCHECK(!web_contents_);
 
@@ -101,6 +107,11 @@ void CefBrowserPlatformDelegate::CloseHostWindow() {
   NOTREACHED();
 }
 
+CefWindowHandle CefBrowserPlatformDelegate::GetHostWindowHandle() const {
+  NOTREACHED();
+  return kNullWindowHandle;
+}
+
 #if defined(USE_AURA)
 views::Widget* CefBrowserPlatformDelegate::GetWindowWidget() const {
   NOTREACHED();
@@ -121,9 +132,49 @@ void CefBrowserPlatformDelegate::PopupWebContentsCreated(
     bool is_devtools) {}
 
 void CefBrowserPlatformDelegate::PopupBrowserCreated(
-    AlloyBrowserHostImpl* new_browser,
+    CefBrowserHostBase* new_browser,
     bool is_devtools) {}
 
+SkColor CefBrowserPlatformDelegate::GetBackgroundColor() const {
+  NOTREACHED();
+  return SkColor();
+}
+
+void CefBrowserPlatformDelegate::WasResized() {
+  NOTREACHED();
+}
+
+void CefBrowserPlatformDelegate::SendKeyEvent(const CefKeyEvent& event) {
+  NOTIMPLEMENTED();
+}
+
+void CefBrowserPlatformDelegate::SendMouseClickEvent(
+    const CefMouseEvent& event,
+    CefBrowserHost::MouseButtonType type,
+    bool mouseUp,
+    int clickCount) {
+  NOTIMPLEMENTED();
+}
+
+void CefBrowserPlatformDelegate::SendMouseMoveEvent(const CefMouseEvent& event,
+                                                    bool mouseLeave) {
+  NOTIMPLEMENTED();
+}
+
+void CefBrowserPlatformDelegate::SendMouseWheelEvent(const CefMouseEvent& event,
+                                                     int deltaX,
+                                                     int deltaY) {
+  NOTIMPLEMENTED();
+}
+
+void CefBrowserPlatformDelegate::SendTouchEvent(const CefTouchEvent& event) {
+  NOTIMPLEMENTED();
+}
+
+void CefBrowserPlatformDelegate::SendFocusEvent(bool setFocus) {
+  NOTIMPLEMENTED();
+}
+
 void CefBrowserPlatformDelegate::SendCaptureLostEvent() {
   NOTIMPLEMENTED();
 }
@@ -134,6 +185,22 @@ void CefBrowserPlatformDelegate::NotifyMoveOrResizeStarted() {}
 void CefBrowserPlatformDelegate::SizeTo(int width, int height) {}
 #endif
 
+gfx::Point CefBrowserPlatformDelegate::GetScreenPoint(
+    const gfx::Point& view) const {
+  NOTREACHED();
+  return gfx::Point();
+}
+
+void CefBrowserPlatformDelegate::ViewText(const std::string& text) {
+  NOTIMPLEMENTED();
+}
+
+bool CefBrowserPlatformDelegate::HandleKeyboardEvent(
+    const content::NativeWebKeyboardEvent& event) {
+  NOTREACHED();
+  return false;
+}
+
 bool CefBrowserPlatformDelegate::PreHandleGestureEvent(
     content::WebContents* source,
     const blink::WebGestureEvent& event) {
@@ -145,6 +212,12 @@ bool CefBrowserPlatformDelegate::IsNeverComposited(
   return false;
 }
 
+CefEventHandle CefBrowserPlatformDelegate::GetEventHandle(
+    const content::NativeWebKeyboardEvent& event) const {
+  NOTREACHED();
+  return kNullEventHandle;
+}
+
 std::unique_ptr<CefFileDialogRunner>
 CefBrowserPlatformDelegate::CreateFileDialogRunner() {
   NOTIMPLEMENTED();
@@ -157,6 +230,19 @@ CefBrowserPlatformDelegate::CreateJavaScriptDialogRunner() {
   return nullptr;
 }
 
+std::unique_ptr<CefMenuRunner> CefBrowserPlatformDelegate::CreateMenuRunner() {
+  NOTIMPLEMENTED();
+  return nullptr;
+}
+
+bool CefBrowserPlatformDelegate::IsWindowless() const {
+  return false;
+}
+
+bool CefBrowserPlatformDelegate::IsViewsHosted() const {
+  return false;
+}
+
 void CefBrowserPlatformDelegate::WasHidden(bool hidden) {
   NOTREACHED();
 }