Transparent apps support

chrome/browser/ui/views/extensions/shell_window_views.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_EXTENSIONS_SHELL_WINDOW_VIEWS_H_
 #define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_SHELL_WINDOW_VIEWS_H_
 
 #include "chrome/browser/ui/base_window.h"
 #include "chrome/browser/ui/extensions/native_shell_window.h"
 #include "chrome/browser/ui/extensions/shell_window.h"
 #include "chrome/browser/ui/views/unhandled_keyboard_event_handler.h"
+#include "content/public/browser/web_contents_observer.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/rect.h"
 #include "ui/views/widget/widget_delegate.h"
 
 class ExtensionKeybindingRegistryViews;
 class Profile;
 
 namespace content {
+class RenderViewHost;
 class WebContents;
 }
 
 namespace extensions {
 class Extension;
 }
 
 namespace views {
 class WebView;
 }
 
 class ShellWindowViews : public NativeShellWindow,
-                         public views::WidgetDelegateView {
+                         public views::WidgetDelegateView,
+                         public content::WebContentsObserver {
  public:
   ShellWindowViews(ShellWindow* shell_window,
                    const ShellWindow::CreateParams& params);
 
   bool frameless() const { return frameless_; }
   SkRegion* draggable_region() { return draggable_region_.get(); }
 
   // BaseWindow implementation.
   virtual bool IsActive() const OVERRIDE;
   virtual bool IsMaximized() const OVERRIDE;
@@ skipping 27 matching lines @@
   virtual void DeleteDelegate() OVERRIDE;
   virtual views::View* GetInitiallyFocusedView() OVERRIDE;
   virtual bool ShouldDescendIntoChildForEventHandling(
       gfx::NativeView child,
       const gfx::Point& location) OVERRIDE;
   virtual gfx::ImageSkia GetWindowAppIcon() OVERRIDE;
   virtual gfx::ImageSkia GetWindowIcon() OVERRIDE;
   virtual bool ShouldShowWindowTitle() const OVERRIDE;
   virtual void OnWidgetMove() OVERRIDE;
 
+  // WebContentsObserver implementation.
+  virtual void RenderViewCreated(
+      content::RenderViewHost* render_view_host) OVERRIDE;
+
  protected:
   // views::View implementation.
   virtual void Layout() OVERRIDE;
   virtual void ViewHierarchyChanged(
       bool is_add, views::View *parent, views::View *child) OVERRIDE;
   virtual gfx::Size GetMinimumSize() OVERRIDE;
   virtual gfx::Size GetMaximumSize() OVERRIDE;
   virtual void OnFocus() OVERRIDE;
 
   Profile* profile() { return shell_window_->profile(); }
@@ skipping 27 matching lines @@
   void OnViewWasResized();
 
   ShellWindow* shell_window_; // weak - ShellWindow owns NativeShellWindow.
 
   views::WebView* web_view_;
   views::Widget* window_;
   bool is_fullscreen_;
 
   scoped_ptr<SkRegion> draggable_region_;
 
-  bool frameless_;
+  const bool frameless_;
+  const bool transparent_background_;
   gfx::Size minimum_size_;
   gfx::Size maximum_size_;
 
   // The class that registers for keyboard shortcuts for extension commands.
   scoped_ptr<ExtensionKeybindingRegistryViews> extension_keybinding_registry_;
 
   UnhandledKeyboardEventHandler unhandled_keyboard_event_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellWindowViews);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_SHELL_WINDOW_VIEWS_H_