[Chromium] [PowerProfiler] Support accuracy level attribute for power data provider.

content/browser/power_profiler/power_profiler_service_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/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/power_profiler/power_profiler_service.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 22 matching lines @@
     events.push_back(event);
 
     num_events_to_send_--;
     return events;
   }
 
   virtual base::TimeDelta GetSamplingRate() OVERRIDE {
     return base::TimeDelta::FromMilliseconds(kDefaultSamplePeriodMs);
   }
 
+  virtual AccuracyLevel GetAccuracyLevel() { return High; }
+
  private:
   int num_events_to_send_;
   DISALLOW_COPY_AND_ASSIGN(TestPowerDataProvider);
 };
 
 class TestPowerProfilerObserver : public PowerProfilerObserver {
  public:
   TestPowerProfilerObserver()
       : valid_event_count_(0),
         total_num_events_received_(0) {}
@@ skipping 81 matching lines @@
 
   ServiceStartTest();
   AddObserverTest();
 
   run_loop.Run();
 
   RemoveObserverTest();
 }
 
 }  // namespace content