Use DiscardableMemoryManager on Android.

base/memory/discardable_memory_manager_unittest.cc

 // Copyright 2014 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 "base/memory/discardable_memory_manager.h"
 
 #include "base/bind.h"
 #include "base/run_loop.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 namespace {
 
 class TestAllocationImpl : public internal::DiscardableMemoryManagerAllocation {
  public:
   TestAllocationImpl() : is_allocated_(false), is_locked_(false) {}
   virtual ~TestAllocationImpl() { DCHECK(!is_locked_); }
 
   // Overridden from internal::DiscardableMemoryManagerAllocation:
-  virtual bool AllocateAndAcquireLock(size_t bytes) OVERRIDE {
+  virtual bool AllocateAndAcquireLock() OVERRIDE {
     bool was_allocated = is_allocated_;
     is_allocated_ = true;
     DCHECK(!is_locked_);
     is_locked_ = true;
     return was_allocated;
   }
   virtual void ReleaseLock() OVERRIDE {
     DCHECK(is_locked_);
     is_locked_ = false;
   }
@@ skipping 384 matching lines @@
            Unretained(this)));
   memory_usage_thread_.message_loop()->PostTask(
       FROM_HERE,
       Bind(&ThreadedDiscardableMemoryManagerTest::SignalHelper,
            Unretained(this)));
   thread_sync_.Wait();
 }
 
 }  // namespace
 }  // namespace base