Update to Chromium version 86.0.4240.0 (#800218)

- CefURLRequest::Create is no longer supported in the renderer process
  (see https://crbug.com/891872). Use CefFrame::CreateURLRequest instead.
- Mac platform definitions have been changed from `MACOSX` to `MAC`
  (see https://crbug.com/1105907) and related CMake macro names have
  been updated. The old `OS_MACOSX` define is still set in code and CMake
  for backwards compatibility.
- Linux ARM build is currently broken (see https://crbug.com/1123214).

libcef/browser/views/button_impl.h

@@ -49,7 +49,7 @@ CEF_BUTTON_IMPL_T class CefButtonImpl : public CEF_VIEW_IMPL_D {
 
 CEF_BUTTON_IMPL_T void CEF_BUTTON_IMPL_D::SetState(cef_button_state_t state) {
   CEF_REQUIRE_VALID_RETURN_VOID();
-  views::Button::ButtonState old_state = ParentClass::root_view()->state();
+  views::Button::ButtonState old_state = ParentClass::root_view()->GetState();
   views::Button::ButtonState new_state =
       static_cast<views::Button::ButtonState>(state);
 
@@ -72,7 +72,7 @@ CEF_BUTTON_IMPL_T void CEF_BUTTON_IMPL_D::SetState(cef_button_state_t state) {
 
 CEF_BUTTON_IMPL_T cef_button_state_t CEF_BUTTON_IMPL_D::GetState() {
   CEF_REQUIRE_VALID_RETURN(CEF_BUTTON_STATE_NORMAL);
-  return static_cast<cef_button_state_t>(ParentClass::root_view()->state());
+  return static_cast<cef_button_state_t>(ParentClass::root_view()->GetState());
 }
 
 CEF_BUTTON_IMPL_T void CEF_BUTTON_IMPL_D::SetInkDropEnabled(bool enabled) {

libcef/browser/views/button_view.h

@@ -61,7 +61,7 @@ CEF_BUTTON_VIEW_T void CEF_BUTTON_VIEW_D::ButtonPressed(
     ParentClass::cef_delegate()->OnButtonPressed(GetCefButton());
   if (ParentClass::ink_drop_mode() != views::Button::InkDropMode::OFF &&
       !ParentClass::IsFocusable() &&
-      ParentClass::state() != views::Button::STATE_PRESSED) {
+      ParentClass::GetState() != views::Button::STATE_PRESSED) {
     // Ink drop state does not get reset properly on click when the button is
     // non-focusable. Reset the ink drop state here if the state has not been
     // explicitly set to pressed by the OnButtonPressed callback calling

libcef/browser/views/menu_button_view.h

@@ -18,7 +18,7 @@
 // CefButtonView template.
 class MenuButtonEx : public views::MenuButton, public views::ButtonListener {
  public:
-  MenuButtonEx() : views::MenuButton(base::string16(), this) {
+  MenuButtonEx() : views::MenuButton(this, base::string16()) {
     // TODO(cef): MenuButton should not use ButtonListener. See
     // http://crbug.com/585252 for details.
     Button::listener_ = this;

libcef/browser/views/window_view.cc

@@ -36,7 +36,11 @@ class ClientViewEx : public views::ClientView {
     DCHECK(window_delegate_);
   }
 
-  bool CanClose() override { return window_delegate_->CanWidgetClose(); }
+  views::CloseRequestResult OnWindowCloseRequested() override {
+    return window_delegate_->CanWidgetClose()
+               ? views::CloseRequestResult::kCanClose
+               : views::CloseRequestResult::kCannotClose;
+  }
 
  private:
   CefWindowView::Delegate* window_delegate_;  // Not owned by this object.
@@ -404,15 +408,15 @@ views::ClientView* CefWindowView::CreateClientView(views::Widget* widget) {
   return new ClientViewEx(widget, GetContentsView(), window_delegate_);
 }
 
-views::NonClientFrameView* CefWindowView::CreateNonClientFrameView(
-    views::Widget* widget) {
+std::unique_ptr<views::NonClientFrameView>
+CefWindowView::CreateNonClientFrameView(views::Widget* widget) {
   if (is_frameless_) {
     // Custom frame type that doesn't render a caption.
-    return new CaptionlessFrameView(widget, this);
+    return std::make_unique<CaptionlessFrameView>(widget, this);
   } else if (widget->ShouldUseNativeFrame()) {
     // DesktopNativeWidgetAura::CreateNonClientFrameView() returns
     // NativeFrameView by default. Extend that type.
-    return new NativeFrameViewEx(widget, this);
+    return std::make_unique<NativeFrameViewEx>(widget, this);
   }
 
   // Use Chromium provided CustomFrameView. In case if we would like to

libcef/browser/views/window_view.h

@@ -63,7 +63,7 @@ class CefWindowView
   void WindowClosing() override;
   views::View* GetContentsView() override;
   views::ClientView* CreateClientView(views::Widget* widget) override;
-  views::NonClientFrameView* CreateNonClientFrameView(
+  std::unique_ptr<views::NonClientFrameView> CreateNonClientFrameView(
       views::Widget* widget) override;
   bool ShouldDescendIntoChildForEventHandling(
       gfx::NativeView child,