Add UMA to study the effect of defaulting fullscreen video to landscape mode

content/public/android/java/src/org/chromium/content/browser/ContentVideoView.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentVideoView.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentVideoView.java b/content/public/android/java/src/org/chromium/content/browser/ContentVideoView.java
index 7cd3b6ef79fa2c87017696dbe3ac97b8fa42ea6c..b0bee67b9f5ec491d73081f7ee343550165f4989 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentVideoView.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentVideoView.java
@@ -8,7 +8,10 @@ import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
+import android.graphics.Point;
+import android.provider.Settings;
 import android.util.Log;
+import android.view.Display;
 import android.view.Gravity;
 import android.view.KeyEvent;
 import android.view.Surface;
@@ -16,6 +19,7 @@ import android.view.SurfaceHolder;
 import android.view.SurfaceView;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.WindowManager;
 import android.widget.FrameLayout;
 import android.widget.LinearLayout;
 import android.widget.ProgressBar;
@@ -92,6 +96,11 @@ public class ContentVideoView extends FrameLayout
 
     private final ContentVideoViewClient mClient;
 
+    private boolean mInitialOrientation;
+    private boolean mUmaRecorded;
+    private long mOrientationChangedTime;
+    private long mPlaybackStartTime;
+
     private class VideoSurfaceView extends SurfaceView {
 
         public VideoSurfaceView(Context context) {
@@ -113,6 +122,11 @@ public class ContentVideoView extends FrameLayout
                     width = height * mVideoWidth / mVideoHeight;
                 }
             }
+            if (mUmaRecorded && (mPlaybackStartTime == mOrientationChangedTime)) {
+                if (isOrientationPortrait() != mInitialOrientation) {
+                    mOrientationChangedTime = System.currentTimeMillis();
+                }
+            }
             setMeasuredDimension(width, height);
         }
     }
@@ -275,6 +289,21 @@ public class ContentVideoView extends FrameLayout
         mProgressView.setVisibility(View.GONE);
         mCurrentState = isPlaying() ? STATE_PLAYING : STATE_PAUSED;
         onVideoSizeChanged(videoWidth, videoHeight);
+        if (mUmaRecorded) return;
+        try {
+            if (Settings.System.getInt(getContext().getContentResolver(),
+                    Settings.System.ACCELEROMETER_ROTATION) == 0) {
+                  return;
+            }
+        } catch (Settings.SettingNotFoundException e) {
+            return;
+        }
+        mInitialOrientation = isOrientationPortrait();
+        mUmaRecorded = true;
+        mPlaybackStartTime = System.currentTimeMillis();
+        mOrientationChangedTime = mPlaybackStartTime;
+        nativeRecordFullscreenPlayback(
+                mNativeContentVideoView, videoHeight > videoWidth, mInitialOrientation);
     }
 
     @Override
@@ -404,6 +433,17 @@ public class ContentVideoView extends FrameLayout
     public void exitFullscreen(boolean relaseMediaPlayer) {
         destroyContentVideoView(false);
         if (mNativeContentVideoView != 0) {
+            if (mUmaRecorded) {
+                long currentTime = System.currentTimeMillis();
+                long timeBeforeOrientationChange = mOrientationChangedTime - mPlaybackStartTime;
+                long timeAfterOrientationChange = currentTime - mOrientationChangedTime;
+                if (timeBeforeOrientationChange == 0) {
+                    timeBeforeOrientationChange = timeAfterOrientationChange;
+                    timeAfterOrientationChange = 0;
+                }
+                nativeRecordExitFullscreenPlayback(mNativeContentVideoView, mInitialOrientation,
+                        timeBeforeOrientationChange, timeAfterOrientationChange);
+            }
             nativeExitFullscreen(mNativeContentVideoView, relaseMediaPlayer);
             mNativeContentVideoView = 0;
         }
@@ -467,6 +507,18 @@ public class ContentVideoView extends FrameLayout
         return mViewAndroid.getNativePointer();
     }
 
+    private boolean isOrientationPortrait() {
+        Context context = getContext();
+        WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
+        Display display = manager.getDefaultDisplay();
+        Point outputSize = new Point(0, 0);
+        display.getSize(outputSize);
+        if (outputSize.x > outputSize.y) {
+            return false;
+        }
+        return true;
+    }
+
     private static native ContentVideoView nativeGetSingletonJavaContentVideoView();
     private native void nativeExitFullscreen(long nativeContentVideoView,
             boolean relaseMediaPlayer);
@@ -480,4 +532,10 @@ public class ContentVideoView extends FrameLayout
     private native void nativePlay(long nativeContentVideoView);
     private native void nativeSeekTo(long nativeContentVideoView, int msec);
     private native void nativeSetSurface(long nativeContentVideoView, Surface surface);
+    private native void nativeRecordFullscreenPlayback(
+            long nativeContentVideoView, boolean isVideoPortrait, boolean isOrientationPortrait);
+    private native void nativeRecordExitFullscreenPlayback(
+            long nativeContentVideoView, boolean isOrientationPortrait,
+            long playbackDurationBeforeOrientationChange,
+            long playbackDurationAfterOrientationChange);
 }