Cleanup: Move kChromeUIScheme constant into content namespace.

chrome/renderer/extensions/dispatcher.cc

Index: chrome/renderer/extensions/dispatcher.cc
diff --git a/chrome/renderer/extensions/dispatcher.cc b/chrome/renderer/extensions/dispatcher.cc
index 6a30ac900d78fbfa9415a8d73c4ee74cdcd6e8f6..c5fbbc806ac58d80253cbcacca920d426122d2f3 100644
--- a/chrome/renderer/extensions/dispatcher.cc
+++ b/chrome/renderer/extensions/dispatcher.cc
@@ -1355,7 +1355,7 @@ void Dispatcher::InitOriginPermissions(const Extension* extension) {
   if (extension->HasAPIPermission(APIPermission::kManagement)) {
     WebSecurityPolicy::addOriginAccessWhitelistEntry(
         extension->url(),
-        WebString::fromUTF8(chrome::kChromeUIScheme),
+        WebString::fromUTF8(content::kChromeUIScheme),
         WebString::fromUTF8(chrome::kChromeUIExtensionIconHost),
         false);
   }
@@ -1376,7 +1376,7 @@ void Dispatcher::AddOrRemoveOriginPermissions(
       content::kHttpScheme,
       content::kHttpsScheme,
       content::kFileScheme,
-      chrome::kChromeUIScheme,
+      content::kChromeUIScheme,
     };
     for (size_t j = 0; j < arraysize(schemes); ++j) {
       if (i->MatchesScheme(schemes[j])) {