Make content text retrieval in ChromeRenderViewObserver never force layout.

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 d324083eac0f98f1075811823d6033144f4911ee..e598d3ede0ee9734d29f1b87f9b0ed0c38e6bc2c 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -2025,6 +2025,11 @@ void RenderViewImpl::didUpdateLayout() {
                                     &RenderViewImpl::CheckPreferredSize);
 }
 
+void RenderViewImpl::didFirstLayoutAfterFinishedParsing() {
+  FOR_EACH_OBSERVER(
+      RenderViewObserver, observers_, DidFirstLayoutAfterFinishedParsing());
+}
+
 void RenderViewImpl::navigateBackForwardSoon(int offset) {
   Send(new ViewHostMsg_GoToEntryAtOffset(routing_id_, offset));
 }