Implement java-side browser sensor polling for device motion and device orientation DOM events.

content/browser/device_orientation/data_fetcher_impl_android.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 CHROME_BROWSER_DEVICE_ORIENTATION_DATA_FETCHER_IMPL_ANDROID_H_
 #define CHROME_BROWSER_DEVICE_ORIENTATION_DATA_FETCHER_IMPL_ANDROID_H_
 
 #include "base/android/scoped_java_ref.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/lock.h"
@@ skipping 19 matching lines @@
 
   // Factory function. We'll listen for events for the lifetime of this object.
   // Returns NULL on error.
   static DataFetcher* Create();
 
   virtual ~DataFetcherImplAndroid();
 
   // Called from Java via JNI.
   void GotOrientation(JNIEnv*, jobject,
                       double alpha, double beta, double gamma);
+  void GotAcceleration(JNIEnv*, jobject,
+                       double x, double y, double z);
+  void GotAccelerationIncludingGravity(JNIEnv*, jobject,
+                                       double x, double y, double z);
+  void GotRotationRate(JNIEnv*, jobject,
+                       double alpha, double beta, double gamma);
 
   // Implementation of DataFetcher.
   virtual const DeviceData* GetDeviceData(DeviceData::Type type) OVERRIDE;
 
  private:
   DataFetcherImplAndroid();
   const Orientation* GetOrientation();
 
   // Wrappers for JNI methods.
-  bool Start(int rate_in_milliseconds);
-  void Stop();
+//  bool Start(int rate_in_milliseconds);

[Peter Beverloo, 2013/03/12 11:26:39]

Please don't include commented out code.

[timvolodine, 2013/03/12 16:12:46]

Done.

+  bool Start(DeviceData::Type event_type, int rate_in_milliseconds);

[Peter Beverloo, 2013/03/12 11:26:39]

While device data definitely is not the correct place to put this enum (given
that we'll be getting rid of it), since the service does not exist yet I guess
this would be ok.  Nonetheless, please add a TODO comment to clarify that this
needs to be moved to the service once it's there.

[timvolodine, 2013/03/12 16:12:46]

Done.

+
+//  void Stop();

[Peter Beverloo, 2013/03/12 11:26:39]

Dito.

[timvolodine, 2013/03/12 16:12:46]

Done.

+  void Stop(DeviceData::Type event_type);
 
   // Value returned by GetDeviceData.
   scoped_refptr<Orientation> current_orientation_;
 
   // 1-element buffer, written by GotOrientation, read by GetDeviceData.
   base::Lock next_orientation_lock_;
   scoped_refptr<Orientation> next_orientation_;
 
   // The Java provider of orientation info.
   base::android::ScopedJavaGlobalRef<jobject> device_orientation_;
 
   DISALLOW_COPY_AND_ASSIGN(DataFetcherImplAndroid);
 };
 
 }  // namespace content
 
 #endif  // CHROME_BROWSER_DEVICE_ORIENTATION_DATA_FETCHER_IMPL_ANDROID_H_