cc: check valid thread and resource origin for the resource rasterized.

cc/resources/resource_provider.h

 // Copyright 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.
 
 #ifndef CC_RESOURCES_RESOURCE_PROVIDER_H_
 #define CC_RESOURCES_RESOURCE_PROVIDER_H_
 
 #include <deque>
 #include <set>
 #include <string>
@@ skipping 286 matching lines @@
     ~ScopedWriteLockSoftware();
 
     SkCanvas* sk_canvas() { return sk_canvas_.get(); }
     bool valid() const { return !!sk_bitmap_.getPixels(); }
 
    private:
     ResourceProvider* resource_provider_;
     ResourceProvider::Resource* resource_;
     SkBitmap sk_bitmap_;
     scoped_ptr<SkCanvas> sk_canvas_;
+    base::ThreadChecker thread_checker_;
 
     DISALLOW_COPY_AND_ASSIGN(ScopedWriteLockSoftware);
   };
 
   class CC_EXPORT ScopedWriteLockGpuMemoryBuffer {
    public:
     ScopedWriteLockGpuMemoryBuffer(ResourceProvider* resource_provider,
                                    ResourceProvider::ResourceId resource_id);
     ~ScopedWriteLockGpuMemoryBuffer();
 
     gfx::GpuMemoryBuffer* GetGpuMemoryBuffer();
 
    private:
     ResourceProvider* resource_provider_;
     ResourceProvider::Resource* resource_;
     gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager_;
     gfx::GpuMemoryBuffer* gpu_memory_buffer_;
     gfx::Size size_;
     ResourceFormat format_;
+    base::ThreadChecker thread_checker_;
 
     DISALLOW_COPY_AND_ASSIGN(ScopedWriteLockGpuMemoryBuffer);
   };
 
   class CC_EXPORT ScopedWriteLockGr {
    public:
     ScopedWriteLockGr(ResourceProvider* resource_provider,
                       ResourceProvider::ResourceId resource_id);
     ~ScopedWriteLockGr();
 
     SkSurface* GetSkSurface(bool use_distance_field_text);
 
    private:
     ResourceProvider* resource_provider_;
     ResourceProvider::Resource* resource_;
+    base::ThreadChecker thread_checker_;
 
     DISALLOW_COPY_AND_ASSIGN(ScopedWriteLockGr);
   };
 
   class Fence : public base::RefCounted<Fence> {
    public:
     Fence() {}
 
     virtual void Set() = 0;
     virtual bool HasPassed() = 0;
@@ skipping 286 matching lines @@
   return format_gl_data_format[format];
 }
 
 inline GLenum GLInternalFormat(ResourceFormat format) {
   return GLDataFormat(format);
 }
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RESOURCE_PROVIDER_H_