Transparent apps support

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

Index: chrome/browser/ui/views/extensions/shell_window_views.h
diff --git a/chrome/browser/ui/views/extensions/shell_window_views.h b/chrome/browser/ui/views/extensions/shell_window_views.h
index 18beabf4d4b353d88d2d5c25beb27e91ef7a69f6..95f2715d733c75d5f5a65fdacec8bfa25ea3f78a 100644
--- a/chrome/browser/ui/views/extensions/shell_window_views.h
+++ b/chrome/browser/ui/views/extensions/shell_window_views.h
@@ -9,6 +9,7 @@
 #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"
@@ -18,6 +19,7 @@ class ExtensionKeybindingRegistryViews;
 class Profile;
 
 namespace content {
+class RenderViewHost;
 class WebContents;
 }
 
@@ -30,7 +32,8 @@ class WebView;
 }
 
 class ShellWindowViews : public NativeShellWindow,
-                         public views::WidgetDelegateView {
+                         public views::WidgetDelegateView,
+                         public content::WebContentsObserver {
  public:
   ShellWindowViews(ShellWindow* shell_window,
                    const ShellWindow::CreateParams& params);
@@ -78,6 +81,10 @@ class ShellWindowViews : public NativeShellWindow,
   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;
@@ -125,7 +132,8 @@ class ShellWindowViews : public NativeShellWindow,
 
   scoped_ptr<SkRegion> draggable_region_;
 
-  bool frameless_;
+  const bool frameless_;
+  const bool transparent_background_;
   gfx::Size minimum_size_;
   gfx::Size maximum_size_;