chromeos: Fix pixelated icons in app list and launcher (part 1)

chrome/browser/ui/views/ash/launcher/launcher_app_icon_loader.cc

Index: chrome/browser/ui/views/ash/launcher/launcher_app_icon_loader.cc
diff --git a/chrome/browser/ui/views/ash/launcher/launcher_app_icon_loader.cc b/chrome/browser/ui/views/ash/launcher/launcher_app_icon_loader.cc
index 83f22bfe0568f4ce81dd7d0ee9b136d7d17ad352..a429f61eec51366526502c5892d6a133ebbbb90a 100644
--- a/chrome/browser/ui/views/ash/launcher/launcher_app_icon_loader.cc
+++ b/chrome/browser/ui/views/ash/launcher/launcher_app_icon_loader.cc
@@ -44,10 +44,10 @@ void LauncherAppIconLoader::FetchImage(const std::string& id) {
   if (!image_loader_.get())
     image_loader_.reset(new ImageLoadingTracker(this));
   map_[image_loader_->next_id()] = id;
-  image_loader_->LoadImage(
+
+  image_loader_->LoadDIPImage(
       extension,
-      extension->GetIconResource(ExtensionIconSet::EXTENSION_ICON_SMALL,
-                                 ExtensionIconSet::MATCH_BIGGER),
+      ExtensionIconSet::EXTENSION_ICON_SMALL,
       gfx::Size(ExtensionIconSet::EXTENSION_ICON_SMALL,
                 ExtensionIconSet::EXTENSION_ICON_SMALL),
       ImageLoadingTracker::CACHE);
@@ -63,9 +63,9 @@ void LauncherAppIconLoader::OnImageLoaded(const gfx::Image& image,
   std::string id = i->second;
   map_.erase(i);
   if (image.IsEmpty())
-    host_->SetAppImage(id, NULL);
+    host_->SetAppImage(id, extensions::Extension::GetDefaultIcon(true));
   else
-    host_->SetAppImage(id, image.ToSkBitmap());
+    host_->SetAppImage(id, *image.ToImageSkia());
 }
 
 const extensions::Extension* LauncherAppIconLoader::GetExtensionForTab(