Use persistent memory for receiving metrics from sub-processes.

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 <stddef.h>
 
 #include <algorithm>
 #include <list>
@@ skipping 420 matching lines @@
   // Post a task to create the corresponding GpuProcessHostUIShim.  The
   // GpuProcessHostUIShim will be destroyed if either the browser exits,
   // in which case it calls GpuProcessHostUIShim::DestroyAll, or the
   // GpuProcessHost is destroyed, which happens when the corresponding GPU
   // process terminates or fails to launch.
   BrowserThread::PostTask(
       BrowserThread::UI,
       FROM_HERE,
       base::Bind(base::IgnoreResult(&GpuProcessHostUIShim::Create), host_id));
 
+  // TODO(bcwhite): Update this with the correct memory size.
   process_.reset(new BrowserChildProcessHostImpl(PROCESS_TYPE_GPU, this,
-                                                 child_token_));
+                                                 child_token_,
+                                                 100 << 10 /* 100 KiB */,
+                                                 "GpuMetrics"));
 }
 
 GpuProcessHost::~GpuProcessHost() {
   DCHECK(CalledOnValidThread());
 
   SendOutstandingReplies();
 
   // In case we never started, clean up.
   while (!queued_messages_.empty()) {
     delete queued_messages_.front();
@@ skipping 719 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