Move kFtpScheme into content namespace.

android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.cc

Index: android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.cc
diff --git a/android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.cc b/android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.cc
index 80fdad483a486a82b372a4639983e0f7edc95bcb..189c39df55bea38a606b2049d9bf0ceb9f954180 100644
--- a/android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.cc
+++ b/android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.cc
@@ -167,7 +167,7 @@ bool IoThreadClientThrottle::ShouldBlockRequest() {
   }
 
   if (io_client->ShouldBlockNetworkLoads()) {
-    if (request_->url().SchemeIs(chrome::kFtpScheme)) {
+    if (request_->url().SchemeIs(content::kFtpScheme)) {
       return true;
     }
     SetCacheControlFlag(request_, net::LOAD_ONLY_FROM_CACHE);