Using the new MemoryPressureListener instead of the LowMemoryObserver when the enhanced memory mana…

content/browser/browser_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/browser/browser_thread_impl.h"
 
 #include <string>
 
 #include "base/atomicops.h"
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/lazy_instance.h"
 #include "base/message_loop/message_loop.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/threading/thread_restrictions.h"
+#include "content/browser/browser_main_loop.h"
 #include "content/public/browser/browser_thread_delegate.h"
 #include "net/disk_cache/simple/simple_backend_impl.h"
 
 #if defined(OS_ANDROID)
 #include "base/android/jni_android.h"
 #endif
 
 namespace content {
 
 namespace {
@@ skipping 446 matching lines @@
 bool BrowserThread::PostTaskAndReply(
     ID identifier,
     const tracked_objects::Location& from_here,
     const base::Closure& task,
     const base::Closure& reply) {
   return GetMessageLoopProxyForThread(identifier)->PostTaskAndReply(from_here,
                                                                     task,
                                                                     reply);
 }
 
+#if defined(OS_CHROMEOS)
+// static
+base::MemoryPressureObserverChromeOS* GetMemoryPressureObserver() {

[piman, 2014/12/20 02:53:15]

This doesn't match the new method in the header, which is a static member of
BrowserThread (this is a free function).

[Mr4D (OOO till 08-26), 2014/12/20 03:01:05]

Done.

+  return BrowserMainLoop::GetInstance()->memory_pressure_observer();
+}
+#endif
+
 // static
 bool BrowserThread::GetCurrentThreadIdentifier(ID* identifier) {
   if (g_globals == NULL)
     return false;
 
   // We shouldn't use MessageLoop::current() since it uses LazyInstance which
   // may be deleted by ~AtExitManager when a WorkerPool thread calls this
   // function.
   // http://crbug.com/63678
   base::ThreadRestrictions::ScopedAllowSingleton allow_singleton;
@@ skipping 37 matching lines @@
   AtomicWord* storage = reinterpret_cast<AtomicWord*>(
       &globals.thread_delegates[identifier]);
   AtomicWord old_pointer = base::subtle::NoBarrier_AtomicExchange(
       storage, reinterpret_cast<AtomicWord>(delegate));
 
   // This catches registration when previously registered.
   DCHECK(!delegate || !old_pointer);
 }
 
 }  // namespace content