Merge pull request #35 from rebuy-de/byte_buffer_oom

Clear mBytesToByteBuffer to prevent out of memory exceptions

Author: claywilkinson

visionSamples/barcode-reader/app/src/main/java/com/google/android/gms/samples/vision/barcodereader/ui/camera/CameraSource.java

@@ -408,6 +408,9 @@ public void stop() {
                 mProcessingThread = null;
             }
 
+            // clear the buffer to prevent oom exceptions
+            mBytesToByteBuffer.clear();
+
             if (mCamera != null) {
                 mCamera.stopPreview();
                 mCamera.setPreviewCallbackWithBuffer(null);