gpu: Use a rectangle to keep track of the cleared area of each texture level.

gpu/command_buffer/service/gles2_cmd_decoder_mock.h

 // Copyright (c) 2012 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.
 
 // This file contains the mock GLES2Decoder class.
 
 #ifndef GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_MOCK_H_
 #define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_MOCK_H_
 
 #include <vector>
@@ skipping 83 matching lines @@
                                        const void* cmd_data));
   MOCK_METHOD4(DoCommands,
                error::Error(unsigned int num_commands,
                             const void* buffer,
                             int num_entries,
                             int* entries_processed));
   MOCK_METHOD2(GetServiceTextureId, bool(uint32 client_texture_id,
                                          uint32* service_texture_id));
   MOCK_METHOD0(GetContextLostReason, error::ContextLostReason());
   MOCK_CONST_METHOD1(GetCommandName, const char*(unsigned int command_id));
-  MOCK_METHOD9(ClearLevel, bool(
-      Texture* texture,
-      unsigned target,
-      int level,
-      unsigned internal_format,
-      unsigned format,
-      unsigned type,
-      int width,
-      int height,
-      bool is_texture_immutable));
+  MOCK_METHOD9(ClearLevel,
+               bool(Texture* texture,
+                    unsigned target,
+                    int level,
+                    unsigned format,
+                    unsigned type,
+                    int x_offset,
+                    int y_offset,
+                    int width,
+                    int height));
   MOCK_METHOD0(GetErrorState, ErrorState *());
 
   MOCK_METHOD0(GetLogger, Logger*());
   MOCK_METHOD1(SetShaderCacheCallback,
                void(const ShaderCacheCallback& callback));
   MOCK_METHOD1(SetWaitSyncPointCallback,
                void(const WaitSyncPointCallback& callback));
   MOCK_METHOD1(WaitForReadPixels,
                void(base::Closure callback));
   MOCK_METHOD0(GetTextureUploadCount, uint32());
   MOCK_METHOD0(GetTotalTextureUploadTime, base::TimeDelta());
   MOCK_METHOD0(GetTotalProcessingCommandsTime, base::TimeDelta());
   MOCK_METHOD1(AddProcessingCommandsTime, void(base::TimeDelta));
   MOCK_CONST_METHOD0(WasContextLost, bool());
   MOCK_CONST_METHOD0(WasContextLostByRobustnessExtension, bool());
   MOCK_METHOD1(MarkContextLost, void(gpu::error::ContextLostReason reason));
 
   DISALLOW_COPY_AND_ASSIGN(MockGLES2Decoder);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_MOCK_H_