getUserMeida: report device starting states

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

Index: media/capture/video/android/java/src/org/chromium/media/VideoCaptureCamera.java
diff --git a/media/capture/video/android/java/src/org/chromium/media/VideoCaptureCamera.java b/media/capture/video/android/java/src/org/chromium/media/VideoCaptureCamera.java
index 929f041150de28ccec086a696f2bc2f219dc9537..db3f6e3cae640953f9ecefdb8b913adea91cb474 100644
--- a/media/capture/video/android/java/src/org/chromium/media/VideoCaptureCamera.java
+++ b/media/capture/video/android/java/src/org/chromium/media/VideoCaptureCamera.java
@@ -400,10 +400,10 @@ public class VideoCaptureCamera
             if (mIsRunning) {
                 return true;
             }
-            mIsRunning = true;
         } finally {
             mPreviewBufferLock.unlock();
         }
+
         setPreviewCallback(this);
         try {
             mCamera.startPreview();
@@ -411,6 +411,14 @@ public class VideoCaptureCamera
             Log.e(TAG, "startCapture: Camera.startPreview: " + ex);
             return false;
         }
+
+        mPreviewBufferLock.lock();
+        try {
+            nativeOnStarted(mNativeVideoCaptureDeviceAndroid);
+            mIsRunning = true;
+        } finally {
+            mPreviewBufferLock.unlock();
+        }
         return true;
     }