Fixing WebViewVisibilityTests for OOPIF-<webview>.

components/guest_view/browser/guest_view_base.cc

 // Copyright 2014 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 "components/guest_view/browser/guest_view_base.h"
 
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/macros.h"
@@ skipping 581 matching lines @@
 
   // Self-destruct.
   delete this;
 }
 
 void GuestViewBase::DidNavigateMainFrame(
     const content::LoadCommittedDetails& details,
     const content::FrameNavigateParams& params) {
   if (attached() && ZoomPropagatesFromEmbedderToGuest())
     SetGuestZoomLevelToMatchEmbedder();
-
-  // TODO(lazyboy): This breaks guest visibility in --site-per-process because

[lazyboy, 2016/01/16 00:46:47]

Great.
Does this take care of all the visibility related issues?
Also, I don't see any tests being enabled in this CL.

[EhsanK, 2016/01/20 00:00:03]

We had three visibility tests where the first two (<webivew>/parent going
invisible) passed after the plumbing. These lines were breaking the third test
which was testHiddenBeforeNavigate in shim/main.

-  // we do not take the widget's visibility into account.  We need to also
-  // stay hidden during "visibility:none" state.
-  if (content::BrowserPluginGuestMode::UseCrossProcessFramesForGuests()) {
-    web_contents()->WasShown();
-  }
 }
 
 void GuestViewBase::ActivateContents(WebContents* web_contents) {
   if (!attached() || !embedder_web_contents()->GetDelegate())
     return;
 
   embedder_web_contents()->GetDelegate()->ActivateContents(
       embedder_web_contents());
 }
 
@@ skipping 268 matching lines @@
 
 void GuestViewBase::UpdateGuestSize(const gfx::Size& new_size,
                                     bool due_to_auto_resize) {
   if (due_to_auto_resize)
     GuestSizeChangedDueToAutoSize(guest_size_, new_size);
   DispatchOnResizeEvent(guest_size_, new_size);
   guest_size_ = new_size;
 }
 
 }  // namespace guest_view