Revert of Deletes mojo::Callback

content/browser/media/capture/image_capture_impl.cc

Index: content/browser/media/capture/image_capture_impl.cc
diff --git a/content/browser/media/capture/image_capture_impl.cc b/content/browser/media/capture/image_capture_impl.cc
index 0a250f767ed1036d80036623870529ecf4d1fde0..b0c0db22af678ed4160edd9a6d2842ab1816041e 100644
--- a/content/browser/media/capture/image_capture_impl.cc
+++ b/content/browser/media/capture/image_capture_impl.cc
@@ -17,6 +17,12 @@
 
 namespace {
 
+template<typename R, typename... Args>
+void RunMojoCallback(const mojo::Callback<R(Args...)>& callback, Args... args) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  callback.Run(std::forward<Args>(args)...);
+}
+
 void RunFailedGetCapabilitiesCallback(
     const ImageCaptureImpl::GetCapabilitiesCallback& cb) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
@@ -32,7 +38,8 @@
     mojo::Array<uint8_t> data) {
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
-      base::Bind(callback, mime_type, base::Passed(std::move(data))));
+      base::Bind(&RunMojoCallback<void, mojo::String, mojo::Array<uint8_t>>,
+                 callback, mime_type, base::Passed(std::move(data))));
 }
 
 void RunFailedTakePhotoCallback(const ImageCaptureImpl::TakePhotoCallback& cb) {