Adding GpuMemoryManager to track GpuCommandBufferStub visibility and last_used_time and dictate mem…

content/common/gpu/gpu_channel.h

Index: content/common/gpu/gpu_channel.h
diff --git a/content/common/gpu/gpu_channel.h b/content/common/gpu/gpu_channel.h
index 7fc6baf2b86bff1e284b4e3212278e2aacdc2ad3..760fc77d82d17bf6bd8cfd1251d5e95b006f766c 100644
--- a/content/common/gpu/gpu_channel.h
+++ b/content/common/gpu/gpu_channel.h
@@ -16,6 +16,7 @@
 #include "base/process.h"
 #include "build/build_config.h"
 #include "content/common/gpu/gpu_command_buffer_stub.h"
+#include "content/common/gpu/gpu_memory_manager.h"
 #include "content/common/message_router.h"
 #include "ipc/ipc_sync_channel.h"
 #include "ui/gfx/gl/gl_share_group.h"
@@ -73,6 +74,9 @@ class GpuChannel : public IPC::Channel::Listener,
   // IPC::Message::Sender implementation:
   virtual bool Send(IPC::Message* msg) OVERRIDE;
 
+  virtual void AppendAllCommandBufferStubs(
+      std::vector<GpuCommandBufferStubBase*>& stubs);
+
   // Whether this channel is able to handle IPC messages.
   bool IsScheduled();