Fix UpdateTilePriorities viewport in Android WebView.

cc/test/fake_output_surface_client.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_TEST_FAKE_OUTPUT_SURFACE_CLIENT_H_
 #define CC_TEST_FAKE_OUTPUT_SURFACE_CLIENT_H_
 
 #include "cc/output/managed_memory_policy.h"
 #include "cc/output/output_surface_client.h"
 
 namespace cc {
 
 class FakeOutputSurfaceClient : public OutputSurfaceClient {
  public:
   FakeOutputSurfaceClient()
       : begin_frame_count_(0),
         deferred_initialize_result_(true),
         deferred_initialize_called_(false),
         did_lose_output_surface_called_(false),
         memory_policy_(0),
         discard_backbuffer_when_not_visible_(false) {}
 
   virtual bool DeferredInitialize(
       scoped_refptr<ContextProvider> offscreen_context_provider) OVERRIDE;
   virtual void ReleaseGL() OVERRIDE {}
   virtual void SetNeedsRedrawRect(gfx::Rect damage_rect) OVERRIDE {}
   virtual void BeginFrame(const BeginFrameArgs& args) OVERRIDE;
   virtual void OnSwapBuffersComplete(const CompositorFrameAck* ack) OVERRIDE {}
   virtual void DidLoseOutputSurface() OVERRIDE;
-  virtual void SetExternalDrawConstraints(const gfx::Transform& transform,
-                                          gfx::Rect viewport) OVERRIDE {}
+  virtual void SetExternalDrawConstraints(
+      const gfx::Transform& transform,
+      gfx::Rect viewport,
+      gfx::Rect clip,
+      bool valid_for_tile_management) OVERRIDE {}
   virtual void SetExternalStencilTest(bool enable) OVERRIDE {}
   virtual void SetMemoryPolicy(const ManagedMemoryPolicy& policy) OVERRIDE;
   virtual void SetDiscardBackBufferWhenNotVisible(bool discard) OVERRIDE;
   virtual void SetTreeActivationCallback(const base::Closure&) OVERRIDE {}
 
   int begin_frame_count() {
     return begin_frame_count_;
   }
 
   void set_deferred_initialize_result(bool result) {
@@ skipping 19 matching lines @@
   bool deferred_initialize_result_;
   bool deferred_initialize_called_;
   bool did_lose_output_surface_called_;
   ManagedMemoryPolicy memory_policy_;
   bool discard_backbuffer_when_not_visible_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_FAKE_OUTPUT_SURFACE_CLIENT_H_