ImageCapture: replace Mojo String/Array with stl/wtf string/vector

media/capture/video/video_capture_device.h

Index: media/capture/video/video_capture_device.h
diff --git a/media/capture/video/video_capture_device.h b/media/capture/video/video_capture_device.h
index 1a5721f70173bc76f776b2bd67431b246fa13672..a1707d5da713fb1a8ed8c1ffe470cba9261c31ba 100644
--- a/media/capture/video/video_capture_device.h
+++ b/media/capture/video/video_capture_device.h
@@ -326,7 +326,7 @@ class CAPTURE_EXPORT VideoCaptureDevice {
   // and/or interrupting the capture flow. Runs |callback| on the thread
   // where TakePhoto() is called, if the photo was successfully taken.
   using TakePhotoCallback = ScopedResultCallback<
-      base::Callback<void(mojo::String, mojo::Array<uint8_t>)>>;
+      base::Callback<void(const std::string&, const std::vector<uint8_t>&)>>;
   virtual void TakePhoto(TakePhotoCallback callback);
 
   // Gets the power line frequency, either from the params if specified by the