Android: Remove the prompt when entering fullscreen mode (behind flag).

chrome/browser/ui/exclusive_access/exclusive_access_manager.cc

 // Copyright (c) 2015 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/exclusive_access/exclusive_access_manager.h"
 
 #include "base/command_line.h"
 #include "build/build_config.h"
 #include "chrome/browser/app_mode/app_mode_utils.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/exclusive_access/exclusive_access_context.h"
 #include "chrome/browser/ui/exclusive_access/fullscreen_controller.h"
 #include "chrome/browser/ui/exclusive_access/mouse_lock_controller.h"
+#include "chrome/common/chrome_features.h"
 #include "chrome/common/chrome_switches.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 
 using content::WebContents;
 
-const base::Feature ExclusiveAccessManager::kSimplifiedUIFeature = {
-    "ViewsSimplifiedFullscreenUI",
-#if defined(USE_AURA)
-    base::FEATURE_ENABLED_BY_DEFAULT,
-#else
-    base::FEATURE_DISABLED_BY_DEFAULT,
-#endif
-};
-
 ExclusiveAccessManager::ExclusiveAccessManager(
     ExclusiveAccessContext* exclusive_access_context)
     : exclusive_access_context_(exclusive_access_context),
       fullscreen_controller_(this),
       mouse_lock_controller_(this) {
 }
 
 ExclusiveAccessManager::~ExclusiveAccessManager() {
 }
 
@@ skipping 53 matching lines @@
 
 GURL ExclusiveAccessManager::GetExclusiveAccessBubbleURL() const {
   GURL result = fullscreen_controller_.GetURLForExclusiveAccessBubble();
   if (!result.is_valid())
     result = mouse_lock_controller_.GetURLForExclusiveAccessBubble();
   return result;
 }
 
 // static
 bool ExclusiveAccessManager::IsSimplifiedFullscreenUIEnabled() {
-  return base::FeatureList::IsEnabled(kSimplifiedUIFeature);
+  return base::FeatureList::IsEnabled(features::kSimplifiedFullscreenUI);
 }
 
 void ExclusiveAccessManager::OnTabDeactivated(WebContents* web_contents) {
   fullscreen_controller_.OnTabDeactivated(web_contents);
   mouse_lock_controller_.OnTabDeactivated(web_contents);
 }
 
 void ExclusiveAccessManager::OnTabDetachedFromView(WebContents* web_contents) {
   fullscreen_controller_.OnTabDetachedFromView(web_contents);
   mouse_lock_controller_.OnTabDetachedFromView(web_contents);
@@ skipping 68 matching lines @@
       fullscreen = true;
       mouselock = true;
       break;
   }
 
   if (fullscreen)
     fullscreen_controller_.RecordBubbleReshownUMA();
   if (mouselock)
     mouse_lock_controller_.RecordBubbleReshownUMA();
 }