Update from https://crrev.com/308331

cc/test/test_shared_bitmap_manager.h

Index: cc/test/test_shared_bitmap_manager.h
diff --git a/cc/test/test_shared_bitmap_manager.h b/cc/test/test_shared_bitmap_manager.h
index 9163c793a1448bf1979e4ee012bb84c86a33dc77..acba0969eae1be7306a534fbb767ad684d1aac04 100644
--- a/cc/test/test_shared_bitmap_manager.h
+++ b/cc/test/test_shared_bitmap_manager.h
@@ -10,6 +10,10 @@
 #include "base/synchronization/lock.h"
 #include "cc/resources/shared_bitmap_manager.h"
 
+namespace base {
+class SharedMemory;
+}  // namespace base
+
 namespace cc {
 
 class TestSharedBitmapManager : public SharedBitmapManager {
@@ -23,9 +27,6 @@ class TestSharedBitmapManager : public SharedBitmapManager {
       const gfx::Size&,
       const SharedBitmapId& id) override;
 
-  scoped_ptr<SharedBitmap> GetBitmapForSharedMemory(
-      base::SharedMemory* memory) override;
-
  private:
   base::Lock lock_;
   std::map<SharedBitmapId, base::SharedMemory*> bitmap_map_;