cc: Add an integration test for what scale we draw with after pinching

cc/test/test_web_graphics_context_3d.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_TEST_WEB_GRAPHICS_CONTEXT_3D_H_
 #define CC_TEST_TEST_WEB_GRAPHICS_CONTEXT_3D_H_
 
 #include <vector>
 
 #include "base/callback.h"
@@ skipping 336 matching lines @@
 
   void SetMaxTransferBufferUsageBytes(size_t max_transfer_buffer_usage_bytes);
   size_t max_used_transfer_buffer_usage_bytes() const {
     return max_used_transfer_buffer_usage_bytes_;
   }
 
   void set_test_support(TestContextSupport* test_support) {
     test_support_ = test_support;
   }
 
+  // Set this to 1 to make async texture uploads complete.
+  void set_query_result_available_ext(int value) {
+    query_result_available_ext_ = value;
+  }
+
   int width() const { return width_; }
   int height() const { return height_; }
   bool reshape_called() const { return reshape_called_; }
   void clear_reshape_called() { reshape_called_ = false; }
   float scale_factor() const { return scale_factor_; }
 
   enum UpdateType {
     NoUpdate = 0,
     PrepareTexture,
     PostSubBuffer
@@ skipping 83 matching lines @@
   int max_texture_size_;
   bool reshape_called_;
   int width_;
   int height_;
   float scale_factor_;
   TestContextSupport* test_support_;
   gfx::Rect update_rect_;
   UpdateType last_update_type_;
   unsigned next_insert_sync_point_;
   unsigned last_waited_sync_point_;
+  int query_result_available_ext_;
 
   unsigned bound_buffer_;
   TextureTargets texture_targets_;
 
   scoped_refptr<Namespace> namespace_;
   static Namespace* shared_namespace_;
 
   base::WeakPtrFactory<TestWebGraphicsContext3D> weak_ptr_factory_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_TEST_WEB_GRAPHICS_CONTEXT_3D_H_