Use initialized canvas to create network icons.

ui/chromeos/network/network_icon.cc

 // Copyright (c) 2012 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/chromeos/network/network_icon.h"
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chromeos/network/device_state.h"
 #include "chromeos/network/network_connection_handler.h"
@@ skipping 212 matching lines @@
  public:
   NetworkIconImageSource(const gfx::ImageSkia& icon, const Badges& badges)
       : icon_(icon),
         badges_(badges) {
   }
   ~NetworkIconImageSource() override {}
 
   // TODO(pkotwicz): Figure out what to do when a new image resolution becomes
   // available.
   gfx::ImageSkiaRep GetImageForScale(float scale) override {
-    gfx::ImageSkiaRep icon_rep = icon_.GetRepresentation(scale);
-    if (icon_rep.is_null())
-      return gfx::ImageSkiaRep();
-    gfx::Canvas canvas(icon_rep, false);
+    gfx::Canvas canvas(icon_.size(), scale, false);
+    canvas.DrawImageInt(icon_, 0, 0);
+
     if (badges_.top_left)
       canvas.DrawImageInt(*badges_.top_left, 0, 0);
     if (badges_.top_right)
       canvas.DrawImageInt(*badges_.top_right,
                           icon_.width() - badges_.top_right->width(), 0);
     if (badges_.bottom_left) {
       canvas.DrawImageInt(*badges_.bottom_left,
                           0, icon_.height() - badges_.bottom_left->height());
     }
     if (badges_.bottom_right) {
@@ skipping 653 matching lines @@
        iter != networks.end(); ++iter) {
     network_paths.insert((*iter)->path());
   }
   PurgeIconMap(ICON_TYPE_TRAY, network_paths);
   PurgeIconMap(ICON_TYPE_DEFAULT_VIEW, network_paths);
   PurgeIconMap(ICON_TYPE_LIST, network_paths);
 }
 
 }  // namespace network_icon
 }  // namespace ui