[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 9047a522d75288e1d9921e27266bef100ef481ba..bdc610b5400323c99ca60ff3a33129e11cab932d 100644
--- a/chromecast/browser/cast_content_window.h
+++ b/chromecast/browser/cast_content_window.h
@@ -13,8 +13,6 @@
 #include "ui/events/event.h"
 
 namespace content {
-class BrowserContext;
-class SiteInstance;
 class WebContents;
 }
 
@@ -53,17 +51,6 @@ class CastContentWindow {
   // |window_manager| should outlive this CastContentWindow.
   virtual void ShowWebContents(content::WebContents* web_contents,
                                CastWindowManager* window_manager) = 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,
-      scoped_refptr<content::SiteInstance> site_instance) = 0;
-  std::unique_ptr<content::WebContents> CreateWebContents(
-      content::BrowserContext* browser_context) {
-    return CreateWebContents(browser_context, nullptr);
-  }
 };
 
 }  // namespace shell