[Chromecast] Add CastWebContents

chromecast/browser/cast_content_window.h

Index: chromecast/browser/cast_content_window.h
diff --git a/chromecast/browser/cast_content_window.h b/chromecast/browser/cast_content_window.h
index 929f2a7e29d7466df2387e0d103b5b5bf7fd9f91..f2fa855c3e29c11e78540d7f9a9a21672d0f5376 100644
--- a/chromecast/browser/cast_content_window.h
+++ b/chromecast/browser/cast_content_window.h
@@ -11,7 +11,6 @@
 #include "ui/events/event.h"
 
 namespace content {
-class BrowserContext;
 class WebContents;
 }
 
@@ -46,12 +45,6 @@ class CastContentWindow {
   // Creates a full-screen window for |web_contents| and display it.
   // |web_contents| should outlive this CastContentWindow.
   virtual void ShowWebContents(content::WebContents* web_contents) = 0;
-
-  // Creates a WebContents.
-  // TODO(derekjchow): remove this function from this class, since it doesn't
-  // have anything to do with displaying web_contents.
-  virtual std::unique_ptr<content::WebContents> CreateWebContents(
-      content::BrowserContext* browser_context) = 0;
 };
 
 }  // namespace shell