mojo::Callback -> base::Callback

media/capture/video/fake_video_capture_device_unittest.cc

Index: media/capture/video/fake_video_capture_device_unittest.cc
diff --git a/media/capture/video/fake_video_capture_device_unittest.cc b/media/capture/video/fake_video_capture_device_unittest.cc
index 41f9b53c5a604e0dca42000ca4ff67cddb4318e4..27bce8abc8191d7c130230a8eb14e02de7071ba7 100644
--- a/media/capture/video/fake_video_capture_device_unittest.cc
+++ b/media/capture/video/fake_video_capture_device_unittest.cc
@@ -138,8 +138,7 @@ class PhotoTakenListener : public base::RefCounted<PhotoTakenListener> {
  public:
   MOCK_METHOD0(OnCorrectPhotoTaken, void(void));
   // GMock doesn't support move-only arguments, so we use this forward method.
-  void DoOnPhotoTaken(const mojo::String& mime_type,
-                      mojo::Array<uint8_t> data) {
+  void DoOnPhotoTaken(mojo::String mime_type, mojo::Array<uint8_t> data) {
     // Only PNG images are supported right now.
     EXPECT_STREQ("image/png", mime_type.storage().c_str());
     // Not worth decoding the incoming data. Just check that the header is PNG.