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

content/browser/gpu/browser_gpu_memory_buffer_manager.cc

 // Copyright 2014 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 "content/browser/gpu/browser_gpu_memory_buffer_manager.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/trace_event/process_memory_dump.h"
 #include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
 #include "content/browser/gpu/gpu_process_host.h"
 #include "content/common/child_process_host_impl.h"
 #include "content/common/generic_shared_memory_id_generator.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/content_switches.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "gpu/ipc/client/gpu_memory_buffer_impl.h"
 #include "gpu/ipc/client/gpu_memory_buffer_impl_shared_memory.h"
 #include "gpu/ipc/common/gpu_memory_buffer_support.h"
 #include "ui/gfx/buffer_format_util.h"
-#include "ui/gfx/gpu_memory_buffer_tracing.h"
 #include "ui/gl/gl_switches.h"
 
 namespace content {
 namespace {
 
 void GpuMemoryBufferDeleted(
     scoped_refptr<base::SingleThreadTaskRunner> destruction_task_runner,
     const gpu::GpuMemoryBufferImpl::DestructionCallback& destruction_callback,
     const gpu::SyncToken& sync_token) {
   destruction_task_runner->PostTask(
@@ skipping 129 matching lines @@
 
       // Create the cross-process ownership edge. If the client creates a
       // corresponding dump for the same buffer, this will avoid to
       // double-count them in tracing. If, instead, no other process will emit a
       // dump with the same guid, the segment will be accounted to the browser.
       uint64_t client_tracing_process_id =
           ClientIdToTracingProcessId(client_id);
 
       base::trace_event::MemoryAllocatorDumpGuid shared_buffer_guid;
       if (buffer.second.type == gfx::SHARED_MEMORY_BUFFER) {
-        shared_buffer_guid = gfx::GetSharedMemoryGUIDForTracing(
-            client_tracing_process_id, buffer_id);
+        // TODO: Fix this! Get shared memroy here!
+        shared_buffer_guid = base::trace_event::
+            MemoryAllocatorDumpGuid();  // GetGUIDForTracing();
+        // SharedMemoryTracker::AddOwnershipEdges(pmd, );
       } else {
         shared_buffer_guid = gfx::GetGenericSharedGpuMemoryGUIDForTracing(
             client_tracing_process_id, buffer_id);
+        pmd->CreateSharedGlobalAllocatorDump(shared_buffer_guid);
+        pmd->AddOwnershipEdge(dump->guid(), shared_buffer_guid);
       }
-      pmd->CreateSharedGlobalAllocatorDump(shared_buffer_guid);
-      pmd->AddOwnershipEdge(dump->guid(), shared_buffer_guid);
     }
   }
 
   return true;
 }
 
 void BrowserGpuMemoryBufferManager::ChildProcessDeletedGpuMemoryBuffer(
     gfx::GpuMemoryBufferId id,
     int child_client_id,
     const gpu::SyncToken& sync_token) {
@@ skipping 274 matching lines @@
       format(format),
       usage(usage),
       gpu_host_id(gpu_host_id) {}
 
 BrowserGpuMemoryBufferManager::BufferInfo::BufferInfo(const BufferInfo& other) =
     default;
 
 BrowserGpuMemoryBufferManager::BufferInfo::~BufferInfo() {}
 
 }  // namespace content