Animate the fullscreen exit bubble's opacity instead of its bounds when in immersive fullscreen

chrome/browser/ui/views/frame/browser_view.cc

Index: chrome/browser/ui/views/frame/browser_view.cc
diff --git a/chrome/browser/ui/views/frame/browser_view.cc b/chrome/browser/ui/views/frame/browser_view.cc
index 6dbd50af445c3636cc2134c43d30b427acf14d99..73fdebbfe55b9e778e87ece541c432b63d099590 100644
--- a/chrome/browser/ui/views/frame/browser_view.cc
+++ b/chrome/browser/ui/views/frame/browser_view.cc
@@ -867,7 +867,7 @@ void BrowserView::UpdateFullscreenExitBubbleContent(
     fullscreen_bubble_->UpdateContent(url, bubble_type);
   } else {
     fullscreen_bubble_.reset(new FullscreenExitBubbleViews(
-        GetWidget(), browser_.get(), url, bubble_type));
+        this, url, bubble_type));
   }
 }
 
@@ -2398,7 +2398,7 @@ void BrowserView::ProcessFullscreen(bool fullscreen,
         type != FOR_METRO &&
         !UseImmersiveFullscreenForUrl(url)) {
       fullscreen_bubble_.reset(new FullscreenExitBubbleViews(
-          GetWidget(), browser_.get(), url, bubble_type));
+          this, url, bubble_type));
     }
   } else {
 #if defined(OS_WIN) && !defined(USE_AURA)