Adding more webview browser tests to app_shell_browsertests.

extensions/browser/guest_view/web_view/web_view_apitest.h

Index: extensions/browser/guest_view/web_view/web_view_apitest.h
diff --git a/extensions/browser/guest_view/web_view/web_view_apitest.h b/extensions/browser/guest_view/web_view/web_view_apitest.h
index a523225f319999828defbde4fd579f0b3fca8acc..17023363892cea04e8aac7e5a9b0df38f7b94ed4 100644
--- a/extensions/browser/guest_view/web_view/web_view_apitest.h
+++ b/extensions/browser/guest_view/web_view/web_view_apitest.h
@@ -30,18 +30,27 @@ class WebViewAPITest : public AppShellTest {
   void StartTestServer();
   void StopTestServer();
 
+  content::WebContents* GetEmbedderWebContents();
+
   // Returns the GuestViewManager singleton.
   TestGuestViewManager* GetGuestViewManager();
 
+  content::WebContents* GetGuestWebContents();
+  void SendMessageToGuestAndWait(const std::string& message,
+                                 const std::string& wait_message);
+  void SendMessageToEmbedder(const std::string& message);
+
   // content::BrowserTestBase implementation.
   virtual void RunTestOnMainThreadLoop() override;
   virtual void SetUpOnMainThread() override;
   virtual void TearDownOnMainThread() override;
 
- protected:
   content::WebContents* embedder_web_contents_;
   TestGuestViewManagerFactory factory_;
   base::DictionaryValue test_config_;
+
+ private:
+  content::WebContents* GetFirstAppWindowWebContents();
 };
 
 class WebViewDPIAPITest : public WebViewAPITest {