Added flag simplified-fullscreen-ui.

chrome/browser/ui/exclusive_access/exclusive_access_manager.cc

Index: chrome/browser/ui/exclusive_access/exclusive_access_manager.cc
diff --git a/chrome/browser/ui/exclusive_access/exclusive_access_manager.cc b/chrome/browser/ui/exclusive_access/exclusive_access_manager.cc
index e252a394a14003e4199fe14dda137b27a46aa412..88dba13825ba954e3f51320903903e6f9ba0dca5 100644
--- a/chrome/browser/ui/exclusive_access/exclusive_access_manager.cc
+++ b/chrome/browser/ui/exclusive_access/exclusive_access_manager.cc
@@ -4,12 +4,14 @@
 
 #include "chrome/browser/ui/exclusive_access/exclusive_access_manager.h"
 
+#include "base/command_line.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_switches.h"
 
 using content::WebContents;
 
@@ -84,6 +86,21 @@ GURL ExclusiveAccessManager::GetExclusiveAccessBubbleURL() const {
   return result;
 }
 
+// static
+bool ExclusiveAccessManager::IsSimplifiedFullscreenUIEnabled() {
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableSimplifiedFullscreenUI)) {
+    return true;
+  }
+
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kDisableSimplifiedFullscreenUI)) {
+    return false;
+  }
+
+  return false;
+}
+
 void ExclusiveAccessManager::OnTabDeactivated(WebContents* web_contents) {
   fullscreen_controller_.OnTabDeactivated(web_contents);
   mouse_lock_controller_.OnTabDeactivated(web_contents);