Get rid of some lingering MD-specific raster assets.

chrome/browser/ui/extensions/extension_action_view_controller.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 "chrome/browser/ui/extensions/extension_action_view_controller.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 31 matching lines @@
     ExtensionAction* extension_action,
     ToolbarActionsBar* toolbar_actions_bar)
     : extension_(extension),
       browser_(browser),
       extension_action_(extension_action),
       toolbar_actions_bar_(toolbar_actions_bar),
       popup_host_(nullptr),
       view_delegate_(nullptr),
       platform_delegate_(ExtensionActionPlatformDelegate::Create(this)),
       icon_factory_(browser->profile(), extension, extension_action, this),
-      icon_observer_(nullptr),
       extension_registry_(
           extensions::ExtensionRegistry::Get(browser_->profile())),
       popup_host_observer_(this),
       weak_factory_(this) {
   DCHECK(extension_action);
   DCHECK(extension_action->action_type() == ActionInfo::TYPE_PAGE ||
          extension_action->action_type() == ActionInfo::TYPE_BROWSER);
   DCHECK(extension);
 }
 
@@ skipping 173 matching lines @@
 
 void ExtensionActionViewController::InspectPopup() {
   ExecuteAction(SHOW_POPUP_AND_INSPECT, true);
 }
 
 void ExtensionActionViewController::OnIconUpdated() {
   // We update the view first, so that if the observer relies on its UI it can
   // be ready.
   if (view_delegate_)
     view_delegate_->UpdateState();
-  if (icon_observer_)
-    icon_observer_->OnIconUpdated();
 }
 
 void ExtensionActionViewController::OnExtensionHostDestroyed(
     const extensions::ExtensionHost* host) {
   OnPopupClosed();
 }
 
 bool ExtensionActionViewController::ExtensionIsValid() const {
   return extension_registry_->enabled_extensions().Contains(extension_->id());
 }
@@ skipping 163 matching lines @@
          extension_action_->GetIsVisible(
              SessionTabHelper::IdForTab(web_contents));
 }
 
 bool ExtensionActionViewController::HasBeenBlocked(
     content::WebContents* web_contents) const {
   ExtensionActionRunner* action_runner =
       ExtensionActionRunner::GetForWebContents(web_contents);
   return action_runner && action_runner->WantsToRun(extension());
 }