Remove WebContents::Was{Hidden,Shown}() from the content public interface

content/browser/frame_host/render_frame_host_impl_browsertest.cc

 // Copyright 2015 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/frame_host/render_frame_host_impl.h"
 
 #include "base/macros.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 107 matching lines @@
   ExecuteScriptAndGetValue(web_contents->GetMainFrame(), "detachframe(2)");
   EXPECT_EQ(nullptr, web_contents->GetFocusedFrame());
   EXPECT_EQ(-1, web_contents->GetFrameTree()->focused_frame_tree_node_id_);
 }
 
 // Test that a frame is visible/hidden depending on its WebContents visibility
 // state.
 IN_PROC_BROWSER_TEST_F(RenderFrameHostImplBrowserTest,
                        GetVisibilityState_Basic) {
   EXPECT_TRUE(NavigateToURL(shell(), GURL("data:text/html,foo")));
-  WebContents* web_contents = shell()->web_contents();
+  WebContentsImpl* web_contents =
+      static_cast<WebContentsImpl*>(shell()->web_contents());
 
   web_contents->WasShown();
   EXPECT_EQ(blink::WebPageVisibilityStateVisible,
             web_contents->GetMainFrame()->GetVisibilityState());
 
   web_contents->WasHidden();
   EXPECT_EQ(blink::WebPageVisibilityStateHidden,
             web_contents->GetMainFrame()->GetVisibilityState());
 }
 
 // Test that a frame visibility can be overridden by the ContentBrowserClient.
 IN_PROC_BROWSER_TEST_F(RenderFrameHostImplBrowserTest,
                        GetVisibilityState_Override) {
   EXPECT_TRUE(NavigateToURL(shell(), GURL("data:text/html,foo")));
-  WebContents* web_contents = shell()->web_contents();
+  WebContentsImpl* web_contents =
+      static_cast<WebContentsImpl*>(shell()->web_contents());
 
   PrerenderTestContentBrowserClient new_client;
   ContentBrowserClient* old_client = SetBrowserClientForTesting(&new_client);
 
   web_contents->WasShown();
   EXPECT_EQ(blink::WebPageVisibilityStateVisible,
             web_contents->GetMainFrame()->GetVisibilityState());
 
   new_client.EnableVisibilityOverride(blink::WebPageVisibilityStatePrerender);
   EXPECT_EQ(blink::WebPageVisibilityStatePrerender,
             web_contents->GetMainFrame()->GetVisibilityState());
 
   SetBrowserClientForTesting(old_client);
 }
 
 }  // namespace content