MD Settings: enhance restarting Chrome + interacting w/ session restore

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 fef7786899395bd67eda4af11241b0fced17dea9..0705cfa82d9732890a49ea1808111ce689c7315f 100644
--- a/chrome/common/url_constants.h
+++ b/chrome/common/url_constants.h
@@ -190,7 +190,6 @@ extern const char kChromeUIFlagsHost[];
 extern const char kChromeUIFlashHost[];
 extern const char kChromeUIGCMInternalsHost[];
 extern const char kChromeUIHelpFrameHost[];
-extern const char kChromeUIHelpHost[];
 extern const char kChromeUIHangHost[];
 extern const char kChromeUIHangUIHost[];
 extern const char kChromeUIHistoryFrameHost[];
@@ -220,7 +219,6 @@ extern const char kChromeUIProfilerHost[];
 extern const char kChromeUIQuotaInternalsHost[];
 extern const char kChromeUIQuitHost[];
 extern const char kChromeUIRestartHost[];
-extern const char kChromeUISettingsHost[];
 extern const char kChromeUISettingsFrameHost[];
 extern const char kChromeUIShorthangHost[];
 extern const char kChromeUISigninEmailConfirmationHost[];