Adding chrome://sessions webui for prototyping NTP stuff.

chrome/common/url_constants.cc

Index: chrome/common/url_constants.cc
===================================================================
--- chrome/common/url_constants.cc	(revision 87979)
+++ chrome/common/url_constants.cc	(working copy)
@@ -73,6 +73,7 @@
 const char kChromeUINewTabURL[] = "chrome://newtab/";
 const char kChromeUIPluginsURL[] = "chrome://plugins/";
 const char kChromeUIPrintURL[] = "chrome://print/";
+const char kChromeUISessionsURL[] = "chrome://sessions/";
 const char kChromeUISettingsURL[] = "chrome://settings/";
 const char kChromeUITextfieldsURL[] = "chrome://textfields/";
 
@@ -124,6 +125,7 @@
 const char kChromeUIPrintHost[] = "print";
 const char kChromeUIResourcesHost[] = "resources";
 const char kChromeUIScreenshotPath[] = "screenshots";
+const char kChromeUISessionsHost[] = "sessions";
 const char kChromeUISettingsHost[] = "settings";
 const char kChromeUISyncInternalsHost[] = "sync-internals";
 const char kChromeUISyncResourcesHost[] = "syncresources";