Don't animate the download shelf when entering/exiting fullscreen.

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

 // Copyright 2012 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/views/frame/browser_view.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 2301 matching lines @@
       focus_manager->ClearFocus();
   }
 
   // Toggle fullscreen mode.
   frame_->SetFullscreen(fullscreen);
 
   // Enable immersive before the browser refreshes its list of enabled commands.
   if (ShouldUseImmersiveFullscreenForUrl(url))
     immersive_mode_controller_->SetEnabled(fullscreen);
 
+  browser_->WindowFullscreenStateWillChange();

[Sidney San Martín, 2017/02/16 21:32:39]

This is a touch awkward. Let me know if you can think of a nicer way to
accomplish the same goal.

[Avi (use Gerrit), 2017/02/16 22:49:22]

I'm not familiar enough with Views to say.

   browser_->WindowFullscreenStateChanged();
 
   if (fullscreen && !chrome::IsRunningInAppMode()) {
     UpdateExclusiveAccessExitBubbleContent(url, bubble_type);
   }
 
   // Undo our anti-jankiness hacks and force a re-layout. We also need to
   // recompute the height of the infobar top arrow because toggling in and out
   // of fullscreen changes it. Calling ToolbarSizeChanged() will do both these
   // things since it computes the arrow height directly and forces a layout
@@ skipping 298 matching lines @@
 }
 
 extensions::ActiveTabPermissionGranter*
 BrowserView::GetActiveTabPermissionGranter() {
   content::WebContents* web_contents = GetActiveWebContents();
   if (!web_contents)
     return nullptr;
   return extensions::TabHelper::FromWebContents(web_contents)
       ->active_tab_permission_granter();
 }