Implement GetBrowsingDataRemoverDelegate() for BrowserContext subclasses

chromecast/browser/cast_browser_context.h

Index: chromecast/browser/cast_browser_context.h
diff --git a/chromecast/browser/cast_browser_context.h b/chromecast/browser/cast_browser_context.h
index a0e6ba7e3dddbb85a6608048c7615bd6f7a33456..c917dd8f88cbc807329512ea1306f9cbe87a5f35 100644
--- a/chromecast/browser/cast_browser_context.h
+++ b/chromecast/browser/cast_browser_context.h
@@ -38,6 +38,8 @@ class CastBrowserContext : public content::BrowserContext {
   content::SSLHostStateDelegate* GetSSLHostStateDelegate() override;
   content::PermissionManager* GetPermissionManager() override;
   content::BackgroundSyncController* GetBackgroundSyncController() override;
+  content::BrowsingDataRemoverDelegate* GetBrowsingDataRemoverDelegate()
+      override;
   net::URLRequestContextGetter* CreateRequestContext(
       content::ProtocolHandlerMap* protocol_handlers,
       content::URLRequestInterceptorScopedVector request_interceptors) override;