Remove dependency on ui from view_manager.

mojo/examples/png_viewer/png_viewer.cc

 // Copyright 2014 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 <algorithm>
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_tokenizer.h"
@@ skipping 75 matching lines @@
     if (!bitmap_.isNull())
       DrawBitmap();
   }
 
   virtual void OnViewManagerDisconnected(ViewManager* view_manager) override {
     // TODO(aa): Need to figure out how shutdown works.
   }
 
   // Overridden from ViewObserver:
   virtual void OnViewBoundsChanged(View* view,
-                                   const gfx::Rect& old_bounds,
-                                   const gfx::Rect& new_bounds) override {
+                                   const Rect& old_bounds,
+                                   const Rect& new_bounds) override {
     DCHECK_EQ(view, root_);
     DrawBitmap();
   }
 
   virtual void OnViewDestroyed(View* view) override {
     DCHECK_EQ(view, root_);
     delete this;
   }
 
   void DecodePNG(URLResponsePtr response) {
@@ skipping 20 matching lines @@
     gfx::PNGCodec::Decode(static_cast<const unsigned char*>(data.get()),
                           content_length,
                           &bitmap_);
   }
 
   void DrawBitmap() {
     if (!root_)
       return;
 
     skia::RefPtr<SkCanvas> canvas(skia::AdoptRef(skia::CreatePlatformCanvas(
-        root_->bounds().width(), root_->bounds().height(), true)));
+        root_->bounds().width, root_->bounds().height, true)));
     canvas->drawColor(SK_ColorGRAY);
     SkPaint paint;
     SkScalar scale =
         SkFloatToScalar(zoom_percentage_ * 1.0f / kDefaultZoomPercentage);
     canvas->scale(scale, scale);
     canvas->drawBitmap(bitmap_, 0, 0, &paint);
     bitmap_uploader_->SetBitmap(
         skia::GetTopDevice(*canvas)->accessBitmap(true));
   }
 
@@ skipping 91 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(PNGViewer);
 };
 
 }  // namespace examples
 }  // namespace mojo
 
 MojoResult MojoMain(MojoHandle shell_handle) {
   mojo::ApplicationRunnerChromium runner(new mojo::examples::PNGViewer);
   return runner.Run(shell_handle);
 }