Move GetWebstoreLaunchURL and GetWebstoreItemDetailURLPrefix to extensions/common/extension_urls.h.

chrome/browser/apps/ephemeral_app_throttle.cc

Index: chrome/browser/apps/ephemeral_app_throttle.cc
diff --git a/chrome/browser/apps/ephemeral_app_throttle.cc b/chrome/browser/apps/ephemeral_app_throttle.cc
index f74cfa4a2947f6b5532dbda31eb5e0abf2b23d08..e81bdc7d807665fb8ab99a7e9eb2988088a610db 100644
--- a/chrome/browser/apps/ephemeral_app_throttle.cc
+++ b/chrome/browser/apps/ephemeral_app_throttle.cc
@@ -13,7 +13,6 @@
 #include "chrome/browser/profiles/profile_io_data.h"
 #include "chrome/browser/ui/extensions/application_launch.h"
 #include "chrome/common/chrome_switches.h"
-#include "chrome/common/extensions/extension_constants.h"
 #include "components/navigation_interception/intercept_navigation_resource_throttle.h"
 #include "components/navigation_interception/navigation_params.h"
 #include "content/public/browser/browser_thread.h"
@@ -21,6 +20,7 @@
 #include "content/public/browser/resource_throttle.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
+#include "extensions/common/extension_urls.h"
 #include "net/url_request/url_request.h"
 
 using content::BrowserThread;
@@ -99,7 +99,7 @@ EphemeralAppThrottle::MaybeCreateThrottleForLaunch(
   // properly in production code - for example, links to ephemeral apps could
   // have a new scheme.
   if (request->url().spec().find(
-          extension_urls::GetWebstoreItemDetailURLPrefix()) != 0)
+          extensions::GetWebstoreItemDetailURLPrefix()) != 0)
     return NULL;
 
   std::string app_id(request->url().ExtractFileName());