Remove GetBitmapForSharedMemory from cc::SharedBitmapManager

content/child/child_shared_bitmap_manager.h

Index: content/child/child_shared_bitmap_manager.h
diff --git a/content/child/child_shared_bitmap_manager.h b/content/child/child_shared_bitmap_manager.h
index e4d6b4989fd1772d47d37d881108f8dc90be97df..0d3bc10793a9b754348777d68b68307418a76f93 100644
--- a/content/child/child_shared_bitmap_manager.h
+++ b/content/child/child_shared_bitmap_manager.h
@@ -18,13 +18,15 @@ class ChildSharedBitmapManager : public cc::SharedBitmapManager {
   ChildSharedBitmapManager(scoped_refptr<ThreadSafeSender> sender);
   ~ChildSharedBitmapManager() override;
 
+  // cc::SharedBitmapManager implementation.
   scoped_ptr<cc::SharedBitmap> AllocateSharedBitmap(
       const gfx::Size& size) override;
   scoped_ptr<cc::SharedBitmap> GetSharedBitmapFromId(
       const gfx::Size&,
       const cc::SharedBitmapId&) override;
+
   scoped_ptr<cc::SharedBitmap> GetBitmapForSharedMemory(
-      base::SharedMemory* mem) override;
+      base::SharedMemory* mem);
 
  private:
   scoped_refptr<ThreadSafeSender> sender_;