Allow the max url length to be overridden

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index d7714267f8aa35ba4921964ca7962acfef4f4808..eb87e36fab8882c6bdc52fea7db15643544820af 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -2659,7 +2659,7 @@ void RenderViewImpl::showContextMenu(
   // in the context menu.
   // TODO(jcivelli): http://crbug.com/45160 This prevents us from saving large
   //                 data encoded images.  We should have a way to save them.
-  if (params.src_url.spec().size() > kMaxURLChars)
+  if (params.src_url.spec().size() > GetMaxURLChars())
     params.src_url = GURL();
   context_menu_node_ = data.node;
 
@@ -2699,9 +2699,9 @@ void RenderViewImpl::UpdateTargetURL(const GURL& url,
     pending_target_url_ = latest_url;
     target_url_status_ = TARGET_PENDING;
   } else {
-    // URLs larger than |kMaxURLChars| cannot be sent through IPC -
+    // URLs larger than |MaxURLChars()| cannot be sent through IPC -
     // see |ParamTraits<GURL>|.
-    if (latest_url.possibly_invalid_spec().size() > kMaxURLChars)
+    if (latest_url.possibly_invalid_spec().size() > GetMaxURLChars())
       latest_url = GURL();
     Send(new ViewHostMsg_UpdateTargetURL(routing_id_, page_id_, latest_url));
     target_url_ = latest_url;