Add ExtendSelectionAndDelete() method to ui::TextInputClient.

content/browser/renderer_host/render_widget_host_impl.cc

Index: content/browser/renderer_host/render_widget_host_impl.cc
diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index 31906ffe23fd6825138234d6c2ce4015e0f07682..9a3a3b6913cb536ca9fb324a4b6349028b19fe64 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -1182,6 +1182,12 @@ void RenderWidgetHostImpl::ImeCancelComposition() {
   Send(new ViewMsg_ImeSetComposition(GetRoutingID(), string16(),
             std::vector<WebKit::WebCompositionUnderline>(), 0, 0));
 }
+
+void RenderWidgetHostImpl::ExtendSelectionAndDelete(int before, int after) {
+  DCHECK_GE(before, 0);
+  DCHECK_GE(after, 0);
+  Send(new ViewMsg_ExtendSelectionAndDelete(GetRoutingID(), before, after));
+}
 
 gfx::Rect RenderWidgetHostImpl::GetRootWindowResizerRect() const {
   return gfx::Rect();