Refactors DeviceOrientation to make it more extensible

content/browser/device_orientation/device_orientation_browsertest.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 "base/command_line.h"
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/browser/device_orientation/orientation.h"
 #include "content/browser/device_orientation/provider.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_switches.h"
 
 namespace device_orientation {
 
 class MockProvider : public Provider {
  public:
   explicit MockProvider(const Orientation& orientation)
       : orientation_(orientation),
         added_observer_(false),
         removed_observer_(false) {}
 
   virtual void AddObserver(Observer* observer) {
     added_observer_ = true;
-    observer->OnOrientationUpdate(orientation_);
+    observer->OnDeviceDataUpdate(&orientation_);
   }
   virtual void RemoveObserver(Observer* observer) {
     removed_observer_ = true;
   }
 
   Orientation orientation_;
   bool added_observer_;
   bool removed_observer_;
 
  private:
@@ skipping 32 matching lines @@
                                                             2);
 
   // Check that the page got the event it expected and that the provider
   // saw requests for adding and removing an observer.
   EXPECT_EQ("pass", chrome::GetActiveWebContents(browser())->GetURL().ref());
   EXPECT_TRUE(provider->added_observer_);
   EXPECT_TRUE(provider->removed_observer_);
 }
 
 } //  namespace device_orientation