[WebUI] Add a chrome://prefs-internals page

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 5f8d4a096227f1c495359903f4926619939210fa..c300794a61950906ca04ce24e0fa7ab0c0ad9ccc 100644
--- a/chrome/common/url_constants.h
+++ b/chrome/common/url_constants.h
@@ -163,6 +163,7 @@ extern const char kChromeUICertificateViewerHost[];
 extern const char kChromeUICertificateViewerDialogHost[];
 extern const char kChromeUIChromeSigninHost[];
 extern const char kChromeUIChromeURLsHost[];
+extern const char kChromeUIComponentsHost[];
 extern const char kChromeUIConflictsHost[];
 extern const char kChromeUIConstrainedHTMLTestHost[];
 extern const char kChromeUICrashesHost[];
@@ -213,8 +214,8 @@ extern const char kChromeUINTPTilesInternalsHost[];
 extern const char kChromeUIOfflineInternalsHost[];
 extern const char kChromeUIOmniboxHost[];
 extern const char kChromeUIPhysicalWebHost[];
-extern const char kChromeUIComponentsHost[];
 extern const char kChromeUIPolicyHost[];
+extern const char kChromeUIPrefsInternalsHost[];
 extern const char kChromeUIMdUserManagerHost[];
 extern const char kChromeUIPredictorsHost[];
 extern const char kChromeUIProfilerHost[];