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 122 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();
+}
+
 AppActivity::~AppActivity() {
   // If this activity is registered, we unregister it now.
   if (app_activity_registry_)
     app_activity_registry_->UnregisterAppActivity(this);
 }
 
 void AppActivity::TitleWasSet(content::NavigationEntry* entry,
                               bool explicit_set) {
   ActivityManager::Get()->UpdateActivity(this);
 }
@@ skipping 45 matching lines @@
     overview_mode_image_ = gfx::ImageSkia();
   }
   // Now we can hide this.
   // Note: This might have to be done asynchronously after the readback took
   // place.
   web_view_->SetVisible(false);
   web_view_->GetWebContents()->GetNativeView()->Hide();
 }
 
 }  // namespace athena