[WIP] Add SharedMemoryTracker to dump base::SharedMemory usage

media/video/gpu_memory_buffer_video_frame_pool.cc

 // Copyright 2015 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.
 
 #include "media/video/gpu_memory_buffer_video_frame_pool.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
 #include <list>
 #include <memory>
 #include <utility>
 
 #include "base/barrier_closure.h"
 #include "base/bind.h"
 #include "base/containers/stack_container.h"
 #include "base/location.h"
 #include "base/macros.h"
+#include "base/memory/shared_memory_tracker.h"
 #include "base/strings/stringprintf.h"
 #include "base/trace_event/memory_dump_manager.h"
 #include "base/trace_event/memory_dump_provider.h"
 #include "base/trace_event/trace_event.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "media/base/bind_to_current_loop.h"
 #include "media/renderers/gpu_video_accelerator_factories.h"
 #include "third_party/libyuv/include/libyuv.h"
 #include "ui/gfx/buffer_format_util.h"
@@ skipping 438 matching lines @@
                         base::trace_event::MemoryAllocatorDump::kUnitsBytes,
                         buffer_size_in_bytes);
         dump->AddScalar("free_size",
                         base::trace_event::MemoryAllocatorDump::kUnitsBytes,
                         frame_resources->IsInUse() ? 0 : buffer_size_in_bytes);
         base::trace_event::MemoryAllocatorDumpGuid shared_buffer_guid =
             gfx::GetGpuMemoryBufferGUIDForTracing(tracing_process_id,
                                                   buffer_id);
         pmd->CreateSharedGlobalAllocatorDump(shared_buffer_guid);
         pmd->AddOwnershipEdge(dump->guid(), shared_buffer_guid, kImportance);
+        base::SharedMemoryHandle shared_memory_handle =
+            plane_resource.gpu_memory_buffer->GetHandle().handle;
+        base::SharedMemoryTracker::AddOwnershipEdgeToSharedGlobalDump(
+            pmd, shared_buffer_guid, shared_memory_handle,
+            buffer_size_in_bytes);
       }
     }
   }
   return true;
 }
 
 void GpuMemoryBufferVideoFramePool::PoolImpl::OnCopiesDone(
     const scoped_refptr<VideoFrame>& video_frame,
     FrameResources* frame_resources,
     const FrameReadyCB& frame_ready_cb) {
@@ skipping 336 matching lines @@
 }
 
 void GpuMemoryBufferVideoFramePool::MaybeCreateHardwareFrame(
     const scoped_refptr<VideoFrame>& video_frame,
     const FrameReadyCB& frame_ready_cb) {
   DCHECK(video_frame);
   pool_impl_->CreateHardwareFrame(video_frame, frame_ready_cb);
 }
 
 }  // namespace media