Factor out RenderWidgetHostConnector

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index f9df957acc8ca68344f9caac2a8963664e563157..841654a7d63c7756a62d48eeb0aa434f16effbfd 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -496,8 +496,10 @@ RenderWidgetHostViewAndroid::~RenderWidgetHostViewAndroid() {
   if (content_view_core_)
     content_view_core_->RemoveObserver(this);
   SetContentViewCore(NULL);
-  if (ime_adapter_android_)
+  if (ime_adapter_android_) {
+    ime_adapter_android_->ResetRenderWidgetHostView(this);

[boliu, 2017/04/11 15:16:13]

no I mean this should be render_widget_host_connector

     ime_adapter_android_ = nullptr;
+  }
   DCHECK(ack_callbacks_.empty());
   DCHECK(!delegated_frame_host_);
 }