[reland] Browser Side Text Input State Tracking for OOPIF (Aura Only)

content/browser/frame_host/render_widget_host_view_child_frame.cc

Index: content/browser/frame_host/render_widget_host_view_child_frame.cc
diff --git a/content/browser/frame_host/render_widget_host_view_child_frame.cc b/content/browser/frame_host/render_widget_host_view_child_frame.cc
index 62bb821e9acf2f687cf4ab31fbd2a6102b3fdb3b..972b53bf2868ebaa0544de60802a35adfe775904 100644
--- a/content/browser/frame_host/render_widget_host_view_child_frame.cc
+++ b/content/browser/frame_host/render_widget_host_view_child_frame.cc
@@ -51,6 +51,10 @@ RenderWidgetHostViewChildFrame::RenderWidgetHostViewChildFrame(
   RegisterSurfaceNamespaceId();
 
   host_->SetView(this);
+
+  // This is necessary when this view is the top-level view, which is the case
+  // for inner WebContents.
+  text_input_manager_ = GetTextInputManager();

[EhsanK, 2016/05/13 16:00:56]

Actually, I am not sure if this is really necessary. 

 }
 
 RenderWidgetHostViewChildFrame::~RenderWidgetHostViewChildFrame() {
@@ -260,11 +264,6 @@ void RenderWidgetHostViewChildFrame::SetIsLoading(bool is_loading) {
   NOTREACHED();
 }
 
-void RenderWidgetHostViewChildFrame::TextInputStateChanged(
-    const TextInputState& params) {
-  // TODO(kenrb): Implement.
-}
-
 void RenderWidgetHostViewChildFrame::RenderProcessGone(
     base::TerminationStatus status,
     int error_code) {