services/ui: Inject GpuService instance where needed, instead of singleton.

services/ui/demo/mus_demo.cc

 // Copyright 2016 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 "services/ui/demo/mus_demo.h"
 
 #include "base/time/time.h"
 #include "services/shell/public/cpp/connector.h"
 #include "services/ui/common/gpu_service.h"
 #include "services/ui/public/cpp/bitmap_uploader.h"
@@ skipping 98 matching lines @@
     const std::set<Window*>& client_windows,
     bool janky) {
   // Don't care
 }
 
 void MusDemo::OnWmNewDisplay(Window* window, const display::Display& display) {
   DCHECK(!window_);  // Only support one display.
   window_ = window;
 
   // Initialize bitmap uploader for sending frames to MUS.
-  uploader_.reset(new ui::BitmapUploader(window_));
+  uploader_.reset(new ui::BitmapUploader(window_, gpu_service_.get()));
   uploader_->Init();
 
   // Draw initial frame and start the timer to regularly draw frames.
   DrawFrame();
   timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(kFrameDelay),
                base::Bind(&MusDemo::DrawFrame, base::Unretained(this)));
 }
 
 void MusDemo::OnWmPerformMoveLoop(Window* window,
                                   mojom::MoveLoopSource source,
@@ skipping 45 matching lines @@
       new std::vector<unsigned char>(addr, addr + bytes));
   bitmap_.unlockPixels();
 
   // Send frame to MUS via BitmapUploader.
   uploader_->SetBitmap(bounds.width(), bounds.height(), std::move(data),
                        ui::BitmapUploader::BGRA);
 }
 
 }  // namespace demo
 }  // namespace ui