Remove enable_media_router.

chrome/common/url_constants.h

Index: chrome/common/url_constants.h
diff --git a/chrome/common/url_constants.h b/chrome/common/url_constants.h
index 97971dcc3d6796f4c471c30448f173ba4e866885..3e44cd755bdbe2ac9a9268c4c80573216e97a909 100644
--- a/chrome/common/url_constants.h
+++ b/chrome/common/url_constants.h
@@ -139,12 +139,10 @@ extern const char kChromeUITabModalConfirmDialogURL[];
 extern const char kChromeUIWebRtcLogsURL[];
 #endif
 
-#if defined(ENABLE_MEDIA_ROUTER)
 extern const char kChromeUIMediaRouterURL[];
 #if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_CHROMEOS)
 extern const char kChromeUICastURL[];
 #endif
-#endif
 
 #if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX)
 extern const char kChromeUIDiscardsHost[];
@@ -326,12 +324,10 @@ extern const char kChromeUITabModalConfirmDialogHost[];
 extern const char kChromeUIWebRtcLogsHost[];
 #endif
 
-#if defined(ENABLE_MEDIA_ROUTER)
 extern const char kChromeUIMediaRouterHost[];
 #if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_CHROMEOS)
 extern const char kChromeUICastHost[];
 #endif
-#endif
 
 // Options sub-pages.
 extern const char kAutofillSubPage[];