Use vector assets for media router icons.

ui/views/examples/vector_example.cc

 // Copyright 2015 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 "ui/views/examples/vector_example.h"
 
 #include <stddef.h>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ skipping 110 matching lines @@
   // ButtonListener
   void ButtonPressed(Button* sender, const ui::Event& event) override {
     DCHECK_EQ(file_go_button_, sender);
     std::string contents;
 #if defined(OS_POSIX)
     base::FilePath path(base::UTF16ToUTF8(file_chooser_->text()));
 #elif defined(OS_WIN)
     base::FilePath path(file_chooser_->text());
 #endif
     base::ReadFileToString(path, &contents);
+    // Skip over comments.
+    for (size_t slashes = contents.find("//"); slashes != std::string::npos;
+         slashes = contents.find("//")) {
+      size_t eol = contents.find("\n", slashes);
+      contents.erase(slashes, eol - slashes);
+    }
     image_view_->SetImage(
         gfx::CreateVectorIconFromSource(contents, size_, color_));
   }
 
   void UpdateImage() {
     image_view_->SetImage(gfx::CreateVectorIcon(
         static_cast<gfx::VectorIconId>(vector_id_), size_, color_));
     Layout();
   }
 
@@ skipping 18 matching lines @@
 
 VectorExample::~VectorExample() {}
 
 void VectorExample::CreateExampleView(View* container) {
   container->SetLayoutManager(new FillLayout());
   container->AddChildView(new VectorIconGallery());
 }
 
 }  // namespace examples
 }  // namespace views