Clean up names and remove unnecessary parameter

content/renderer/render_widget.h

Index: content/renderer/render_widget.h
diff --git a/content/renderer/render_widget.h b/content/renderer/render_widget.h
index 303aed11f6138e5d0e18cd089df4bbc2c59fa3b6..b7fd9728ba8f316a12fdf499b598d1335d3756e3 100644
--- a/content/renderer/render_widget.h
+++ b/content/renderer/render_widget.h
@@ -261,8 +261,7 @@ class CONTENT_EXPORT RenderWidget
   void NotifyInputEventHandled(blink::WebInputEvent::Type handled_type,
                                InputEventAckState ack_result) override;
   void SetInputHandler(RenderWidgetInputHandler* input_handler) override;
-  void UpdateTextInputState(ShowIme show_ime,
-                            ChangeSource change_source) override;
+  void UpdateTextInputState(ShowIme show_ime) override;
   bool WillHandleGestureEvent(const blink::WebGestureEvent& event) override;
   bool WillHandleMouseEvent(const blink::WebMouseEvent& event) override;
 
@@ -677,6 +676,9 @@ class CONTENT_EXPORT RenderWidget
   // ImeEventGuard. We keep track of the outermost one, and update it as needed.
   ImeEventGuard* ime_event_guard_;
 
+  // Whether the text input state update was requested by IME or not.
+  bool ime_requested_update_;
+
   // True if we have requested this widget be closed.  No more messages will
   // be sent, except for a Close.
   bool closing_;