Modified the behavior of "Hide Toolbar in Full Screen"

chrome/browser/ui/cocoa/browser/exclusive_access_controller_views.h

Index: chrome/browser/ui/cocoa/browser/exclusive_access_controller_views.h
diff --git a/chrome/browser/ui/cocoa/browser/exclusive_access_controller_views.h b/chrome/browser/ui/cocoa/browser/exclusive_access_controller_views.h
index 1cd03e32dae3db5fab2e7a9fe650e72b25505681..b3c2ab6bf94f3d232144feb2634a743c4c604351 100644
--- a/chrome/browser/ui/cocoa/browser/exclusive_access_controller_views.h
+++ b/chrome/browser/ui/cocoa/browser/exclusive_access_controller_views.h
@@ -15,6 +15,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/exclusive_access/exclusive_access_context.h"
 #include "chrome/browser/ui/views/exclusive_access_bubble_views_context.h"
+#include "components/prefs/pref_change_registrar.h"
 #include "ui/base/accelerators/accelerator.h"
 
 class Browser;
@@ -55,7 +56,7 @@ class ExclusiveAccessController : public ExclusiveAccessContext,
   bool IsFullscreen() const override;
   bool SupportsFullscreenWithToolbar() const override;
   void UpdateFullscreenWithToolbar(bool with_toolbar) override;
-  void ToggleFullscreenToolbar() override;
+  void UpdateFullscreenToolbar() override;
   bool IsFullscreenWithToolbar() const override;
   void EnterFullscreen(const GURL& url,
                        ExclusiveAccessBubbleType type,
@@ -98,6 +99,9 @@ class ExclusiveAccessController : public ExclusiveAccessContext,
   scoped_ptr<ExclusiveAccessBubbleViews> views_bubble_;
   base::scoped_nsobject<ExclusiveAccessBubbleWindowController> cocoa_bubble_;
 
+  // Used to keep track of the kShowFullscreenToolbar preference.
+  PrefChangeRegistrar pref_registrar_;
+
   DISALLOW_COPY_AND_ASSIGN(ExclusiveAccessController);
 };