Route calls to tcmalloc MallocExtension through allocator agnostic interface

content/renderer/render_thread_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/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <vector>
 
+#include "base/allocator/allocator_extension.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/stats_table.h"
 #include "base/path_service.h"
 #include "base/shared_memory.h"
 #include "base/string_number_conversions.h"  // Temporary
@@ skipping 34 matching lines @@
 #include "content/renderer/render_process_impl.h"
 #include "content/renderer/render_view_impl.h"
 #include "content/renderer/renderer_webkitplatformsupport_impl.h"
 #include "content/renderer/renderer_webstoragearea_impl.h"
 #include "grit/content_resources.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_platform_file.h"
 #include "media/base/media.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
-#include "third_party/tcmalloc/chromium/src/gperftools/malloc_extension.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebColorName.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCompositor.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDatabase.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNetworkStateNotifier.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPopupMenu.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebRuntimeFeatures.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebScriptController.h"
@@ skipping 553 matching lines @@
 }
 
 void RenderThreadImpl::IdleHandler() {
   bool run_in_foreground_tab = (widget_count_ > hidden_widget_count_) &&
                                content::GetContentClient()->renderer()->
                                    RunIdleHandlerWhenWidgetsHidden();
   if (run_in_foreground_tab) {
     IdleHandlerInForegroundTab();
     return;
   }
-#if !defined(OS_MACOSX) && defined(USE_TCMALLOC)
-  MallocExtension::instance()->ReleaseFreeMemory();
-#endif
+
+  base::allocator::ReleaseFreeMemory();
 
   v8::V8::IdleNotification();
 
   // Schedule next invocation.
   // Dampen the delay using the algorithm (if delay is in seconds):
   //    delay = delay + 1 / (delay + 2)
   // Using floor(delay) has a dampening effect such as:
   //    1s, 1, 1, 2, 2, 2, 2, 3, 3, ...
   // If the delay is in milliseconds, the above formula is equivalent to:
   //    delay_ms / 1000 = delay_ms / 1000 + 1 / (delay_ms / 1000 + 2)
@@ skipping 17 matching lines @@
 
   if (idle_notifications_to_skip_ > 0) {
     idle_notifications_to_skip_--;
   } else  {
     int cpu_usage = 0;
     Send(new ViewHostMsg_GetCPUUsage(&cpu_usage));
     // Idle notification hint roughly specifies the expected duration of the
     // idle pause. We set it proportional to the idle timer delay.
     int idle_hint = static_cast<int>(new_delay_ms / 10);
     if (cpu_usage < kIdleCPUUsageThresholdInPercents) {
-#if !defined(OS_MACOSX) && defined(USE_TCMALLOC)
-      MallocExtension::instance()->ReleaseFreeMemory();
-#endif
+      base::allocator::ReleaseFreeMemory();
       if (v8::V8::IdleNotification(idle_hint)) {
         // V8 finished collecting garbage.
         new_delay_ms = kLongIdleHandlerDelayMs;
       }
     }
   }
   ScheduleIdleHandler(new_delay_ms);
 }
 
 int64 RenderThreadImpl::GetIdleNotificationDelayInMs() const {
@@ skipping 305 matching lines @@
 
 scoped_refptr<base::MessageLoopProxy>
 RenderThreadImpl::GetFileThreadMessageLoopProxy() {
   DCHECK(message_loop() == MessageLoop::current());
   if (!file_thread_.get()) {
     file_thread_.reset(new base::Thread("Renderer::FILE"));
     file_thread_->Start();
   }
   return file_thread_->message_loop_proxy();
 }