Add a chrome://interstitials page.

chrome/common/url_constants.cc

Index: chrome/common/url_constants.cc
diff --git a/chrome/common/url_constants.cc b/chrome/common/url_constants.cc
index 8dab2675c9dc16633534a95333e085798d5537ae..6423b3f1283aefa0be83ea70497b3f0df1fe0cca 100644
--- a/chrome/common/url_constants.cc
+++ b/chrome/common/url_constants.cc
@@ -58,6 +58,7 @@ const char kChromeUIHistoryFrameURL[] = "chrome://history-frame/";
 const char kChromeUIIdentityInternalsURL[] = "chrome://identity-internals/";
 const char kChromeUIInspectURL[] = "chrome://inspect/";
 const char kChromeUIInstantURL[] = "chrome://instant/";
+const char kChromeUIInterstitialURL[] = "chrome://interstitials/";
 const char kChromeUIInvalidationsURL[] = "chrome://invalidations/";
 const char kChromeUIIPCURL[] = "chrome://ipc/";
 const char kChromeUIMemoryRedirectURL[] = "chrome://memory-redirect/";
@@ -197,6 +198,7 @@ const char kChromeUIHistoryFrameHost[] = "history-frame";
 const char kChromeUIIdentityInternalsHost[] = "identity-internals";
 const char kChromeUIInspectHost[] = "inspect";
 const char kChromeUIInstantHost[] = "instant";
+const char kChromeUIInterstitialHost[] = "interstitials";
 const char kChromeUIInvalidationsHost[] = "invalidations";
 const char kChromeUIIPCHost[] = "ipc";
 const char kChromeUIKillHost[] = "kill";