Delete memory manager dead code.

content/browser/gpu/gpu_process_host.cc

Index: content/browser/gpu/gpu_process_host.cc
diff --git a/content/browser/gpu/gpu_process_host.cc b/content/browser/gpu/gpu_process_host.cc
index 042fb7d3079304398e52155826aaca27e7cb7a75..cfc9aabba8e28bd185c9a9114e2de7114cd85aac 100644
--- a/content/browser/gpu/gpu_process_host.cc
+++ b/content/browser/gpu/gpu_process_host.cc
@@ -432,13 +432,10 @@ GpuProcessHost::~GpuProcessHost() {
 
   UMA_HISTOGRAM_COUNTS_100("GPU.AtExitSurfaceCount",
                            GpuSurfaceTracker::Get()->GetSurfaceCount());
-
   UMA_HISTOGRAM_BOOLEAN("GPU.AtExitReceivedMemoryStats",
                         uma_memory_stats_received_);
 
   if (uma_memory_stats_received_) {
-    UMA_HISTOGRAM_COUNTS_100("GPU.AtExitWindowCount",
-                             uma_memory_stats_.window_count);
     UMA_HISTOGRAM_COUNTS_100("GPU.AtExitManagedMemoryClientCount",
                              uma_memory_stats_.client_count);
     UMA_HISTOGRAM_COUNTS_100("GPU.AtExitContextGroupCount",
@@ -528,8 +525,7 @@ bool GpuProcessHost::Init() {
   if (!Send(new GpuMsg_Initialize()))
     return false;
 
-  return Send(new GpuMsg_SetVideoMemoryWindowCount(
-      GpuDataManagerImpl::GetInstance()->GetWindowCount()));
+  return true;
 }
 
 void GpuProcessHost::RouteOnUIThread(const IPC::Message& message) {