getUserMeida: report device starting states

media/capture/video/android/java/src/org/chromium/media/VideoCaptureCamera2.java

Index: media/capture/video/android/java/src/org/chromium/media/VideoCaptureCamera2.java
diff --git a/media/capture/video/android/java/src/org/chromium/media/VideoCaptureCamera2.java b/media/capture/video/android/java/src/org/chromium/media/VideoCaptureCamera2.java
index 3997af9fbb2899fdb3ba39937f0d68f7c94950f0..cce263eeff23e7429c51889eba5478e30c0ea182 100644
--- a/media/capture/video/android/java/src/org/chromium/media/VideoCaptureCamera2.java
+++ b/media/capture/video/android/java/src/org/chromium/media/VideoCaptureCamera2.java
@@ -97,6 +97,7 @@ public class VideoCaptureCamera2 extends VideoCapture {
                 return;
             }
             // Now wait for trigger on CrImageReaderListener.onImageAvailable();
+            nativeOnStarted(mNativeVideoCaptureDeviceAndroid);
             changeCameraStateAndNotify(CameraState.STARTED);
         }
 
@@ -114,6 +115,10 @@ public class VideoCaptureCamera2 extends VideoCapture {
     private class CrImageReaderListener implements ImageReader.OnImageAvailableListener {
         @Override
         public void onImageAvailable(ImageReader reader) {
+            synchronized (mCameraStateLock) {
+                if (mCameraState != CameraState.STARTED) return;
+            }
+
             try (Image image = reader.acquireLatestImage()) {
                 if (image == null) return;