Remove RenderWidgetHost::GetSnapshotFromRenderer.

content/public/browser/render_widget_host.h

Index: content/public/browser/render_widget_host.h
diff --git a/content/public/browser/render_widget_host.h b/content/public/browser/render_widget_host.h
index 0e71ac8cc6358306eae7ae6f357fc4a0c92e4cc0..30308736a76bdfb0ec9591ac8bcbaa62f651856e 100644
--- a/content/public/browser/render_widget_host.h
+++ b/content/public/browser/render_widget_host.h
@@ -290,16 +290,6 @@ class CONTENT_EXPORT RenderWidgetHost : public IPC::Sender {
   // Get the screen info corresponding to this render widget.
   virtual void GetWebScreenInfo(blink::WebScreenInfo* result) = 0;
 
-  // Grabs snapshot from renderer side and returns the bitmap to a callback.
-  // If |src_rect| is empty, the whole contents is copied. This is an expensive
-  // operation due to the IPC, but it can be used as a fallback method when
-  // CopyFromBackingStore fails due to the backing store not being available or,
-  // in composited mode, when the accelerated surface is not available to the
-  // browser side.
-  virtual void GetSnapshotFromRenderer(
-      const gfx::Rect& src_subrect,
-      const base::Callback<void(bool, const SkBitmap&)>& callback) = 0;
-
   virtual SkBitmap::Config PreferredReadbackFormat() = 0;
 
  protected: