Move memory observer off OutputSurface/CompositorFrameSink

content/common/gpu/client/context_provider_command_buffer.h

 // Copyright (c) 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 CONTENT_COMMON_GPU_CLIENT_CONTEXT_PROVIDER_COMMAND_BUFFER_H_
 #define CONTENT_COMMON_GPU_CLIENT_CONTEXT_PROVIDER_COMMAND_BUFFER_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread_checker.h"
+#include "base/trace_event/memory_dump_provider.h"
 #include "cc/output/context_provider.h"
 #include "content/common/content_export.h"
 #include "content/common/gpu/client/command_buffer_metrics.h"
 #include "gpu/command_buffer/client/shared_memory_limits.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/ipc/common/gpu_stream_constants.h"
 #include "gpu/ipc/common/surface_handle.h"
 #include "ui/gl/gpu_preference.h"
 #include "url/gurl.h"
 
@@ skipping 11 matching lines @@
 namespace skia_bindings {
 class GrContextForGLES2Interface;
 }
 
 namespace content {
 class WebGraphicsContext3DCommandBufferImpl;
 
 // Implementation of cc::ContextProvider that provides a GL implementation over
 // command buffer to the GPU process.
 class CONTENT_EXPORT ContextProviderCommandBuffer
-    : NON_EXPORTED_BASE(public cc::ContextProvider) {
+    : NON_EXPORTED_BASE(public cc::ContextProvider),
+      public base::trace_event::MemoryDumpProvider {
  public:
   ContextProviderCommandBuffer(
       scoped_refptr<gpu::GpuChannelHost> channel,
       int32_t stream_id,
       gpu::GpuStreamPriority stream_priority,
       gpu::SurfaceHandle surface_handle,
       const GURL& active_url,
       bool automatic_flushes,
       bool support_locking,
       const gpu::SharedMemoryLimits& memory_limits,
@@ skipping 12 matching lines @@
   gpu::gles2::GLES2Interface* ContextGL() override;
   gpu::ContextSupport* ContextSupport() override;
   class GrContext* GrContext() override;
   cc::ContextCacheController* CacheController() override;
   void InvalidateGrContext(uint32_t state) override;
   base::Lock* GetLock() override;
   gpu::Capabilities ContextCapabilities() override;
   void SetLostContextCallback(
       const LostContextCallback& lost_context_callback) override;
 
+  // base::trace_event::MemoryDumpProvider implementation.
+  bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
+                    base::trace_event::ProcessMemoryDump* pmd) override;
+
   // Set the default task runner for command buffers to use for handling IPCs.
   // If not specified, this will be the ThreadTaskRunner for the thread on
   // which BindToThread is called.
   void SetDefaultTaskRunner(
       scoped_refptr<base::SingleThreadTaskRunner> default_task_runner);
 
  protected:
   ~ContextProviderCommandBuffer() override;
 
   void OnLostContext();
@@ skipping 38 matching lines @@
   std::unique_ptr<gpu::gles2::GLES2TraceImplementation> trace_impl_;
   std::unique_ptr<skia_bindings::GrContextForGLES2Interface> gr_context_;
   std::unique_ptr<cc::ContextCacheController> cache_controller_;
 
   LostContextCallback lost_context_callback_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_CLIENT_CONTEXT_PROVIDER_COMMAND_BUFFER_H_