ImageCapture: introduce image_capture Blob to allow move-only semantics

media/capture/video/android/video_capture_device_android.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/capture/video/android/video_capture_device_android.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/android/jni_android.h"
@@ skipping 241 matching lines @@
   const auto reference_it =
       std::find_if(photo_callbacks_.begin(), photo_callbacks_.end(),
                    [cb](const std::unique_ptr<TakePhotoCallback>& callback) {
                      return callback.get() == cb;
                    });
   if (reference_it == photo_callbacks_.end()) {
     NOTREACHED() << "|callback_id| not found.";
     return;
   }
 
-  std::vector<uint8_t> native_data;
-  base::android::JavaByteArrayToByteVector(env, data.obj(), &native_data);
-
-  cb->Run(std::string(native_data.empty() ? "" : "image/jpeg"), native_data);
+  mojom::BlobPtr blob = mojom::Blob::New();
+  base::android::JavaByteArrayToByteVector(env, data.obj(), &blob->data);
+  blob->mime_type = blob->data.empty() ? "" : "image/jpeg";
+  cb->Run(std::move(blob));
 
   photo_callbacks_.erase(reference_it);
 }
 
 VideoPixelFormat VideoCaptureDeviceAndroid::GetColorspace() {
   JNIEnv* env = AttachCurrentThread();
   const int current_capture_colorspace =
       Java_VideoCapture_getColorspace(env, j_capture_.obj());
   switch (current_capture_colorspace) {
     case ANDROID_IMAGE_FORMAT_YV12:
@@ skipping 12 matching lines @@
     const tracked_objects::Location& from_here,
     const std::string& reason) {
   {
     base::AutoLock lock(lock_);
     state_ = kError;
   }
   client_->OnError(from_here, reason);
 }
 
 }  // namespace media