Make activities have a thick border when in overview mode part 1

athena/content/app_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/app_activity.h"
 
 #include "athena/activity/public/activity_manager.h"
 #include "athena/content/app_activity_registry.h"
 #include "athena/content/public/app_registry.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 120 matching lines @@
 }
 
 void AppActivity::CreateOverviewModeImage() {
   // TODO(skuhne): Implement this!
 }
 
 gfx::ImageSkia AppActivity::GetOverviewModeImage() {
   return overview_mode_image_;
 }
 
+void AppActivity::PrepareContentsForOverview() {
+  // Turn on fast resizing to avoid re-laying out the web contents when
+  // entering / exiting overview mode.
+  web_view_->SetFastResize(true);
+}
+
+void AppActivity::ResetContentsView() {
+  web_view_->SetFastResize(false);
+  web_view_->Layout();
+}
+
 void AppActivity::TitleWasSet(content::NavigationEntry* entry,
                               bool explicit_set) {
   ActivityManager::Get()->UpdateActivity(this);
 }
 
 void AppActivity::DidUpdateFaviconURL(
     const std::vector<content::FaviconURL>& candidates) {
   ActivityManager::Get()->UpdateActivity(this);
 }
 
 // Register an |activity| with an application.
 // Note: This should only get called once for an |app_window| of the
 // |activity|.
 void AppActivity::RegisterActivity() {
   content::WebContents* web_contents = GetWebContents();
   AppRegistry* app_registry = AppRegistry::Get();
   // Get the application's registry.
   app_activity_registry_ = app_registry->GetAppActivityRegistry(
       app_id_, web_contents->GetBrowserContext());
   DCHECK(app_activity_registry_);
   // Register the activity.
   app_activity_registry_->RegisterAppActivity(this);
 }
 
 }  // namespace athena