Not allowing user to type more chars than max length value for text field.

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 aeb07c5e1f6aa8c895fcdcebdf0fcaa7fe6cdb36..e8a8e0b3e694b08dc1c87962f3d3320c982cec6d 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -2019,8 +2019,14 @@ void RenderViewImpl::focusPrevious() {
 
 void RenderViewImpl::focusedNodeChanged(const WebNode& node) {
   has_scrolled_focused_editable_node_into_rect_ = false;
-
-  Send(new ViewHostMsg_FocusedNodeChanged(routing_id_, IsEditableNode(node)));
+  int max_length_;
+  if (IsEditableNode(node)) {
+    const WebElement& element = node.toConst<WebElement>();
+    if (toWebInputElement(&element))
+      max_length_ = toWebInputElement(&element)->maxLength();
+  }
+  Send(new ViewHostMsg_FocusedNodeChanged(
+      routing_id_, IsEditableNode(node), max_length_));
 
   FOR_EACH_OBSERVER(RenderViewObserver, observers_, FocusedNodeChanged(node));