Linux: add option to use system tcmalloc (off by default)

content/renderer/devtools/devtools_agent.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/renderer/devtools/devtools_agent.h"
 
 #include <map>
 
 #include "base/lazy_instance.h"
 #include "base/message_loop.h"
@@ skipping 111 matching lines @@
 }
 
 void DevToolsAgent::clearBrowserCache() {
   Send(new DevToolsHostMsg_ClearBrowserCache(routing_id()));
 }
 
 void DevToolsAgent::clearBrowserCookies() {
   Send(new DevToolsHostMsg_ClearBrowserCookies(routing_id()));
 }
 
-#if defined(USE_TCMALLOC) && !defined(OS_WIN)
+#if defined(USE_TCMALLOC) && !defined(OS_WIN) && !defined(USE_SYSTEM_TCMALLOC)
 static void AllocationVisitor(void* data, const void* ptr) {
     typedef WebKit::WebDevToolsAgentClient::AllocatedObjectVisitor Visitor;
     Visitor* visitor = reinterpret_cast<Visitor*>(data);
     visitor->visitObject(ptr);
 }
 #endif
 
 void DevToolsAgent::visitAllocatedObjects(AllocatedObjectVisitor* visitor) {
-#if defined(USE_TCMALLOC) && !defined(OS_WIN)
+#if defined(USE_TCMALLOC) && !defined(OS_WIN) && !defined(USE_SYSTEM_TCMALLOC)
   IterateAllocatedObjects(&AllocationVisitor, visitor);
 #endif
 }
 
 // static
 DevToolsAgent* DevToolsAgent::FromHostId(int host_id) {
   IdToAgentMap::iterator it = g_agent_for_routing_id.Get().find(host_id);
   if (it != g_agent_for_routing_id.Get().end()) {
     return it->second;
   }
@@ skipping 84 matching lines @@
   if (!web_view)
     return NULL;
   return web_view->devToolsAgent();
 }
 
 bool DevToolsAgent::IsAttached() {
   return is_attached_;
 }
 
 }  // namespace content