Fix Flash fullscreen focus regressions, and add interactive_ui_tests.

content/browser/web_contents/web_contents_view_aura.cc

 // Copyright (c) 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 "content/browser/web_contents/web_contents_view_aura.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/metrics/histogram.h"
@@ skipping 1015 matching lines @@
 
 void WebContentsViewAura::Focus() {
   if (web_contents_->GetInterstitialPage()) {
     web_contents_->GetInterstitialPage()->Focus();
     return;
   }
 
   if (delegate_.get() && delegate_->Focus())
     return;
 
-  RenderWidgetHostView* rwhv = web_contents_->GetRenderWidgetHostView();
+  RenderWidgetHostView* rwhv =
+      web_contents_->GetFullscreenRenderWidgetHostView();
+  if (!rwhv)
+    rwhv = web_contents_->GetRenderWidgetHostView();
   if (rwhv)
     rwhv->Focus();
 }
 
 void WebContentsViewAura::SetInitialFocus() {
   if (web_contents_->FocusLocationBarByDefault())
     web_contents_->SetFocusToLocationBar(false);
   else
     Focus();
 }
@@ skipping 584 matching lines @@
   if (visible) {
     if (!web_contents_->should_normally_be_visible())
       web_contents_->WasShown();
   } else {
     if (web_contents_->should_normally_be_visible())
       web_contents_->WasHidden();
   }
 }
 
 }  // namespace content