Add RGB565 Texture readback support in gl_helper

content/browser/renderer_host/render_widget_host_view_win.cc

Index: content/browser/renderer_host/render_widget_host_view_win.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_win.cc b/content/browser/renderer_host/render_widget_host_view_win.cc
index baa909c72bd88347946a0963904c4ab45b4dbe1c..1c12a6f6c65c93b41fb981919ae78d0a5573d2b8 100644
--- a/content/browser/renderer_host/render_widget_host_view_win.cc
+++ b/content/browser/renderer_host/render_widget_host_view_win.cc
@@ -860,7 +860,8 @@ BackingStore* RenderWidgetHostViewWin::AllocBackingStore(
 void RenderWidgetHostViewWin::CopyFromCompositingSurface(
     const gfx::Rect& src_subrect,
     const gfx::Size& dst_size,
-    const base::Callback<void(bool, const SkBitmap&)>& callback) {
+    const base::Callback<void(bool, const SkBitmap&)>& callback,
+    bool readback_config_rgb565) {

[piman, 2014/01/09 18:12:15]

Fail if readback_config_rgb565 is true?

[sivag, 2014/01/10 12:20:01]

Done.

   base::ScopedClosureRunner scoped_callback_runner(
       base::Bind(callback, false, SkBitmap()));
   if (!accelerated_surface_)