Implements part of Device Motion in the Renderer

content/browser/device_orientation/provider_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_DEVICE_ORIENTATION_PROVIDER_IMPL_H_
 #define CONTENT_BROWSER_DEVICE_ORIENTATION_PROVIDER_IMPL_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 15 matching lines @@
 
 class ProviderImpl : public Provider {
  public:
   typedef DataFetcher* (*DataFetcherFactory)();
 
   // Create a ProviderImpl that uses the NULL-terminated factories array to find
   // a DataFetcher that can provide orientation data.
   CONTENT_EXPORT ProviderImpl(const DataFetcherFactory factories[]);
 
   // From Provider.
-  virtual void AddObserver(Observer* observer) OVERRIDE;
-  virtual void RemoveObserver(Observer* observer) OVERRIDE;
+  virtual void AddMotionObserver(MotionObserver* observer) OVERRIDE {
+    // TODO(aousterh): implement this
+  }
+  virtual void AddOrientationObserver(OrientationObserver* observer) OVERRIDE;
+  virtual void RemoveMotionObserver(MotionObserver* observer) OVERRIDE {
+    // TODO(aousterh): implement this
+  }
+  virtual void RemoveOrientationObserver(
+    OrientationObserver* observer) OVERRIDE;

[bulach, 2012/07/02 12:47:56]

nit: indent +2

[aousterh, 2012/07/04 13:31:55]

Done.

 
  private:
   virtual ~ProviderImpl();
 
   // Starts or Stops the provider. Called from creator_loop_.
   void Start();
   void Stop();
 
   // Method for finding a suitable DataFetcher and starting the polling.
   // Runs on the polling_thread_.
@@ skipping 15 matching lines @@
 
   enum { kDesiredSamplingIntervalMs = 100 };
   base::TimeDelta SamplingInterval() const;
 
   // The Message Loop on which this object was created.
   // Typically the I/O loop, but may be something else during testing.
   MessageLoop* creator_loop_;
 
   // Members below are only to be used from the creator_loop_.
   std::vector<DataFetcherFactory> factories_;
-  std::set<Observer*> observers_;
+  std::set<OrientationObserver*> observers_;
   Orientation last_notification_;
 
   // When polling_thread_ is running, members below are only to be used
   // from that thread.
   scoped_ptr<DataFetcher> data_fetcher_;
   Orientation last_orientation_;
   base::WeakPtrFactory<ProviderImpl> weak_factory_;
 
   // Polling is done on this background thread.
   scoped_ptr<base::Thread> polling_thread_;
 };
 
 }  // namespace device_orientation
 
 #endif  // CONTENT_BROWSER_DEVICE_ORIENTATION_PROVIDER_IMPL_H_