[Aura] Initial app list webui.

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 0ef8476c67d5e19cd43ba8d9c4cc6a04956f788f..2efade85f2809da250ce640b25d0370a6c60f069 100644
--- a/chrome/common/url_constants.cc
+++ b/chrome/common/url_constants.cc
@@ -106,6 +106,10 @@ const char kChromeUIHttpAuthURL[] = "chrome://http-auth/";
 const char kChromeUIRepostFormWarningURL[] = "chrome://repost-form-warning/";
 #endif
 
+#if defined(USE_AURA)
+const char kChromeUIAppListURL[] = "chrome://app-list/";
+#endif
+
 // Add Chrome UI hosts here, in alphabetical order.
 // Add hosts to kChromePaths in browser_about_handler.cc to be listed by
 // chrome://chrome-urls (about:about) and the built-in AutocompleteProvider.
@@ -232,6 +236,10 @@ const char kChromeUIHttpAuthHost[] = "http-auth";
 const char kChromeUIRepostFormWarningHost[] = "repost-form-warning";
 #endif
 
+#if defined(USE_AURA)
+const char kChromeUIAppListHost[] = "app-list";
+#endif
+
 // Option sub pages.
 // Add sub page paths to kChromeSettingsSubPages in builtin_provider.cc to be
 // listed by the built-in AutocompleteProvider.