Move has_focus_ tracking from RenderWidget to RenderView.

content/renderer/render_widget.cc

Index: content/renderer/render_widget.cc
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index 353d9eaab63052259a46878a3cedee3fa3eec4bd..bdb8c2035b409ab088bb308edbef4726d105dc32 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -496,7 +496,6 @@ RenderWidget::RenderWidget(CompositorDependencies* compositor_deps,
       compositor_never_visible_(never_visible),
       is_fullscreen_granted_(false),
       display_mode_(blink::WebDisplayModeUndefined),
-      has_focus_(false),
       handling_input_event_(false),
       handling_event_overscroll_(nullptr),
       handling_ime_event_(false),
@@ -1293,8 +1292,6 @@ void RenderWidget::OnMouseCaptureLost() {
 }
 
 void RenderWidget::OnSetFocus(bool enable) {
-  has_focus_ = enable;
-
   // TODO(nasko): This code is here to help diagnose https://crbug.com/541578.
   if (webwidget_->isWebView()) {
     blink::WebView* view = static_cast<blink::WebView*>(webwidget_);