Add GPU memory tab to the task manager.

content/gpu/gpu_child_thread.cc

 // 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.
 
 #include "content/gpu/gpu_child_thread.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 80 matching lines @@
 
   return ChildThread::Send(msg);
 }
 
 bool GpuChildThread::OnControlMessageReceived(const IPC::Message& msg) {
   bool msg_is_ok = true;
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP_EX(GpuChildThread, msg, msg_is_ok)
     IPC_MESSAGE_HANDLER(GpuMsg_Initialize, OnInitialize)
     IPC_MESSAGE_HANDLER(GpuMsg_CollectGraphicsInfo, OnCollectGraphicsInfo)
+    IPC_MESSAGE_HANDLER(GpuMsg_GetVidmemUsageStats, OnGetVidmemUsageStats)
     IPC_MESSAGE_HANDLER(GpuMsg_Clean, OnClean)
     IPC_MESSAGE_HANDLER(GpuMsg_Crash, OnCrash)
     IPC_MESSAGE_HANDLER(GpuMsg_Hang, OnHang)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP_EX()
 
   if (handled)
     return true;
 
   return gpu_channel_manager_.get() &&
@@ skipping 98 matching lines @@
         // collected.
         collecting_dx_diagnostics_ = false;
         gpu_info_.finalized = true;
       }
     }
 #endif
   }
   Send(new GpuHostMsg_GraphicsInfoCollected(gpu_info_));
 }
 
+void GpuChildThread::OnGetVidmemUsageStats()
+{

[jam, 2012/08/17 18:31:05]

nit: bracket on previous line

[ccameron, 2012/08/17 20:52:55]

Done.

+  content::GPUVidmemUsageStats vidmem_usage_stats;
+  if (gpu_channel_manager_.get())
+    gpu_channel_manager_->gpu_memory_manager()->GetVidmemUsageStats(
+        vidmem_usage_stats);
+  Send(new GpuHostMsg_VidmemUsageStats(vidmem_usage_stats));
+}
+
 void GpuChildThread::OnClean() {
   VLOG(1) << "GPU: Removing all contexts";
   if (gpu_channel_manager_.get())
     gpu_channel_manager_->LoseAllContexts();
 }
 
 void GpuChildThread::OnCrash() {
   VLOG(1) << "GPU: Simulating GPU crash";
   // Good bye, cruel world.
   volatile int* it_s_the_end_of_the_world_as_we_know_it = NULL;
@@ skipping 23 matching lines @@
 // Runs on the main thread.
 void GpuChildThread::SetDxDiagnostics(GpuChildThread* thread,
                                       const content::DxDiagNode& node) {
   thread->gpu_info_.dx_diagnostics = node;
   thread->gpu_info_.finalized = true;
   thread->collecting_dx_diagnostics_ = false;
   thread->Send(new GpuHostMsg_GraphicsInfoCollected(thread->gpu_info_));
 }
 
 #endif