Revert 60373, trying to track down a perf regression (see bug 56752)- Add about:gpuhang

BUG=None
TEST=None

Review URL: http://codereview.chromium.org/3447023

TBR=thakis@chromium.org
Review URL: http://codereview.chromium.org/3398027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@60421 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 0 insertions, 8 deletions

diff --git a/chrome/gpu/gpu_thread.cc b/chrome/gpu/gpu_thread.cc
index cb2a89b..97cb5d1 100644
--- a/chrome/gpu/gpu_thread.cc
+++ b/chrome/gpu/gpu_thread.cc
@@ -91,8 +91,6 @@ void GpuThread::OnControlMessageReceived(const IPC::Message& msg) {
                         OnCollectGraphicsInfo)
     IPC_MESSAGE_HANDLER(GpuMsg_Crash,
                         OnCrash)
-    IPC_MESSAGE_HANDLER(GpuMsg_Hang,
-                        OnHang)
   IPC_END_MESSAGE_MAP_EX()
 }
 
@@ -170,8 +168,3 @@ void GpuThread::OnCrash() {
   volatile int* it_s_the_end_of_the_world_as_we_know_it = NULL;
   *it_s_the_end_of_the_world_as_we_know_it = 0xdead;
 }
-
-void GpuThread::OnHang() {
-  for (;;)
-    PlatformThread::Sleep(1000);
-}
diff --git a/chrome/gpu/gpu_thread.h b/chrome/gpu/gpu_thread.h
index b896360..519b092 100644
--- a/chrome/gpu/gpu_thread.h
+++ b/chrome/gpu/gpu_thread.h
@@ -43,7 +43,6 @@ class GpuThread : public ChildThread {
   void OnSynchronize();
   void OnCollectGraphicsInfo();
   void OnCrash();
-  void OnHang();
   void OnNewRenderWidgetHostView(GpuNativeWindowHandle parent_window,
                                  int32 routing_id);