[tracing] Disable memory maps dump provider for security reason

content/browser/gpu/gpu_process_host.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/browser/gpu/gpu_process_host.h"
 
 #include "base/base64.h"
 #include "base/base_switches.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 90 matching lines @@
 #if defined(OS_CHROMEOS)
   switches::kDisableVaapiAcceleratedVideoEncode,
 #endif
   switches::kGpuStartupDialog,
   switches::kGpuSandboxAllowSysVShm,
   switches::kGpuSandboxFailuresFatal,
   switches::kGpuSandboxStartEarly,
   switches::kLoggingLevel,
   switches::kEnableLowEndDeviceMode,
   switches::kDisableLowEndDeviceMode,
+  switches::kEnableMemoryBenchmarking,
   switches::kNoSandbox,
   switches::kProfilerTiming,
   switches::kTestGLLib,
   switches::kTraceStartup,
   switches::kTraceToConsole,
   switches::kV,
   switches::kVModule,
 #if defined(OS_MACOSX)
   switches::kDisableRemoteCoreAnimation,
   switches::kDisableMacOverlays,
@@ skipping 1023 matching lines @@
   TRACE_EVENT0("gpu", "GpuProcessHost::OnCacheShader");
   ClientIdToShaderCacheMap::iterator iter =
       client_id_to_shader_cache_.find(client_id);
   // If the cache doesn't exist then this is an off the record profile.
   if (iter == client_id_to_shader_cache_.end())
     return;
   iter->second->Cache(GetShaderPrefixKey() + ":" + key, shader);
 }
 
 }  // namespace content