Use Widget frame and WidgetDelegate in ActvityWidget

athena/content/web_activity.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 "athena/content/web_activity.h"
 
 #include "athena/activity/public/activity_manager.h"
 #include "athena/input/public/accelerator_manager.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 132 matching lines @@
 
   scoped_ptr<WebActivityController> controller_;
 
   DISALLOW_COPY_AND_ASSIGN(AthenaWebView);
 };
 
 }  // namespace
 
 WebActivity::WebActivity(content::BrowserContext* browser_context,
                          const GURL& url)
-    : browser_context_(browser_context), url_(url), web_view_(NULL) {
+    : browser_context_(browser_context),
+      url_(url),
+      web_view_(NULL) {
 }
 
 WebActivity::~WebActivity() {
 }
 
 ActivityViewModel* WebActivity::GetActivityViewModel() {
   return this;
 }
 
 void WebActivity::Init() {
   DCHECK(web_view_);
   static_cast<AthenaWebView*>(web_view_)->InstallAccelerators();
 }
 
-SkColor WebActivity::GetRepresentativeColor() {
+SkColor WebActivity::GetRepresentativeColor() const {
   // TODO(sad): Compute the color from the favicon.
   return SK_ColorGRAY;
 }
 
-base::string16 WebActivity::GetTitle() {
+base::string16 WebActivity::GetTitle() const {
   return web_view_->GetWebContents()->GetTitle();
 }
 
+bool WebActivity::UsesFrame() const {
+  return true;
+}
+
 views::View* WebActivity::GetContentsView() {
   if (!web_view_) {
     web_view_ = new AthenaWebView(browser_context_);
     web_view_->LoadInitialURL(url_);
     Observe(web_view_->GetWebContents());
   }
   return web_view_;
 }
 
 void WebActivity::TitleWasSet(content::NavigationEntry* entry,
                               bool explicit_set) {
   ActivityManager::Get()->UpdateActivity(this);
 }
 
 void WebActivity::DidUpdateFaviconURL(
     const std::vector<content::FaviconURL>& candidates) {
   ActivityManager::Get()->UpdateActivity(this);
 }
 
 }  // namespace athena