Remove base::ScopedPtrHashMap from gpu/ipc/service/.

gpu/ipc/service/gpu_channel.h

Index: gpu/ipc/service/gpu_channel.h
diff --git a/gpu/ipc/service/gpu_channel.h b/gpu/ipc/service/gpu_channel.h
index 47c1ba63604df7fe0b6ed6da742fc4575d9acda9..cbe08696305f1deb4c56c1545bdff3291ab3d0ff 100644
--- a/gpu/ipc/service/gpu_channel.h
+++ b/gpu/ipc/service/gpu_channel.h
@@ -10,9 +10,9 @@
 
 #include <memory>
 #include <string>
+#include <unordered_map>
 
 #include "base/containers/hash_tables.h"
-#include "base/containers/scoped_ptr_hash_map.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
@@ -177,7 +177,7 @@ class GPU_EXPORT GpuChannel
   scoped_refptr<GpuChannelMessageFilter> filter_;
 
   // Map of routing id to command buffer stub.
-  base::ScopedPtrHashMap<int32_t, std::unique_ptr<GpuCommandBufferStub>> stubs_;
+  std::unordered_map<int32_t, std::unique_ptr<GpuCommandBufferStub>> stubs_;
 
  private:
   friend class TestGpuChannel;