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

content/common/gpu/gpu_channel_manager.cc

Index: content/common/gpu/gpu_channel_manager.cc
diff --git a/content/common/gpu/gpu_channel_manager.cc b/content/common/gpu/gpu_channel_manager.cc
index 9c12d1a321cc6608532e15bcffcff45f2bdb4f63..8122db12a39639b205a68f2d8fc7e0aae436e869 100644
--- a/content/common/gpu/gpu_channel_manager.cc
+++ b/content/common/gpu/gpu_channel_manager.cc
@@ -8,6 +8,7 @@
 #include "content/common/child_thread.h"
 #include "content/common/gpu/gpu_channel.h"
 #include "content/common/gpu/gpu_messages.h"
+#include "content/common/gpu/gpu_memory_manager.h"
 
 GpuChannelManager::GpuChannelManager(ChildThread* gpu_child_thread,
                                      GpuWatchdog* watchdog,
@@ -17,6 +18,8 @@ GpuChannelManager::GpuChannelManager(ChildThread* gpu_child_thread,
       io_message_loop_(io_message_loop),
       shutdown_event_(shutdown_event),
       gpu_child_thread_(gpu_child_thread),
+      ALLOW_THIS_IN_INITIALIZER_LIST(gpu_memory_manager_(this,
+          GpuMemoryManager::kDefaultMaxSurfacesWithFrontbufferSoftLimit)),
       watchdog_(watchdog) {
   DCHECK(gpu_child_thread);
   DCHECK(io_message_loop);
@@ -53,6 +56,15 @@ GpuChannel* GpuChannelManager::LookupChannel(int32 client_id) {
     return iter->second;
 }
 
+void GpuChannelManager::AppendAllCommandBufferStubs(
+    std::vector<GpuCommandBufferStubBase*>& stubs) {
+  for (GpuChannelMap::const_iterator it = gpu_channels_.begin();
+      it != gpu_channels_.end(); ++it ) {
+    it->second->AppendAllCommandBufferStubs(stubs);
+  }
+
+}
+
 bool GpuChannelManager::OnMessageReceived(const IPC::Message& msg) {
   bool msg_is_ok = true;
   bool handled = true;