content: Disable CommandBufferProxyImpl::Flush traces by default.

content/common/gpu/client/command_buffer_proxy_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/common/gpu/client/command_buffer_proxy_impl.h"
 
 #include "base/callback.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/memory/shared_memory.h"
@@ skipping 176 matching lines @@
 
 int32 CommandBufferProxyImpl::GetLastToken() {
   TryUpdateState();
   return last_state_.token;
 }
 
 void CommandBufferProxyImpl::Flush(int32 put_offset) {
   if (last_state_.error != gpu::error::kNoError)
     return;
 
-  TRACE_EVENT1("gpu",
+  TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("gpu.debug"),
                "CommandBufferProxyImpl::Flush",
                "put_offset",
                put_offset);
 
   if (last_put_offset_ == put_offset)
     return;
 
   last_put_offset_ = put_offset;
 
   Send(new GpuCommandBufferMsg_AsyncFlush(route_id_,
@@ skipping 350 matching lines @@
 void CommandBufferProxyImpl::SendManagedMemoryStats(
     const GpuManagedMemoryStats& stats) {
   if (last_state_.error != gpu::error::kNoError)
     return;
 
   Send(new GpuCommandBufferMsg_SendClientManagedMemoryStats(route_id_,
                                                             stats));
 }
 
 }  // namespace content