battery-status: Implement the battery-status API for chromeos.

content/browser/battery_status/battery_status_browsertest.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/command_line.h"
 #include "base/synchronization/waitable_event.h"
 #include "content/browser/battery_status/battery_status_manager.h"
 #include "content/browser/battery_status/battery_status_service.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/content_browser_test.h"
 #include "content/public/test/content_browser_test_utils.h"
 #include "content/public/test/test_navigation_observer.h"
 #include "content/public/test/test_utils.h"
 #include "content/shell/browser/shell.h"
 
 namespace content {
 
 namespace {
 
 class FakeBatteryManager : public BatteryStatusManager {
  public:
   explicit FakeBatteryManager(
       const BatteryStatusService::BatteryUpdateCallback& callback)
-      : battery_status_available_(true),
-        started_(false) {
-    callback_ = callback;
-  }
+      : callback_(callback), battery_status_available_(true), started_(false) {}
   virtual ~FakeBatteryManager() { }
 
   // Methods from BatteryStatusManager.
   virtual bool StartListeningBatteryChange() OVERRIDE {
     started_ = true;
     if (battery_status_available_)
       InvokeUpdateCallback();
     return battery_status_available_;
   }
 
   virtual void StopListeningBatteryChange() OVERRIDE { }
 
   void InvokeUpdateCallback() {
     callback_.Run(status_);
   }
 
   void set_battery_status(const blink::WebBatteryStatus& status) {
     status_ = status;
   }
 
   void set_battery_status_available(bool value) {
     battery_status_available_ = value;
   }
 
   bool started() {
     return started_;
   }
 
  private:
+  BatteryStatusService::BatteryUpdateCallback callback_;
   bool battery_status_available_;
   bool started_;
   blink::WebBatteryStatus status_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeBatteryManager);
 };
 
 class BatteryStatusBrowserTest : public ContentBrowserTest  {
  public:
     BatteryStatusBrowserTest()
@@ skipping 90 matching lines @@
   battery_manager()->set_battery_status(status);
   battery_manager()->InvokeUpdateCallback();
   same_tab_observer2.Wait();
   EXPECT_EQ("pass", shell()->web_contents()->GetLastCommittedURL().ref());
   EXPECT_TRUE(battery_manager()->started());
 }
 
 }  //  namespace
 
 }  //  namespace content