Video capture Android: enable unittests for Camera2 API

media/capture/video/android/java/src/org/chromium/media/VideoCapture.java

Index: media/capture/video/android/java/src/org/chromium/media/VideoCapture.java
diff --git a/media/capture/video/android/java/src/org/chromium/media/VideoCapture.java b/media/capture/video/android/java/src/org/chromium/media/VideoCapture.java
index c862450ef58be43d4f07ab7bb2a36bb523fa7d92..c73e21787f5f29fcbf7cb993b3bc6fa7397299bc 100644
--- a/media/capture/video/android/java/src/org/chromium/media/VideoCapture.java
+++ b/media/capture/video/android/java/src/org/chromium/media/VideoCapture.java
@@ -34,6 +34,8 @@ public abstract class VideoCapture {
     // Native callback context variable.
     protected final long mNativeVideoCaptureDeviceAndroid;
 
+    protected boolean mTestMode = true;

[jbudorick, 2016/09/01 18:46:41]

nit: name this more specifically, something like mUseBackgroundThreadForTesting
or something like that.

[mcasas, 2016/09/01 20:52:36]

Done. Also, it should be false by default.

+
     VideoCapture(Context context, int id, long nativeVideoCaptureDeviceAndroid) {
         mContext = context;
         mId = id;
@@ -103,6 +105,11 @@ public abstract class VideoCapture {
         }
     }
 
+    @CalledByNative
+    public final void setTestMode() {
+        mTestMode = true;
+    }
+
     protected final int getCameraRotation() {
         int rotation = mInvertDeviceOrientationReadings ? (360 - getDeviceRotation())
                                                         : getDeviceRotation();