Remove complexity from the input pipeline.

content/renderer/input/render_widget_input_handler.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_INPUT_RENDER_WIDGET_INPUT_HANDLER_H_
 #define CONTENT_RENDERER_INPUT_RENDER_WIDGET_INPUT_HANDLER_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 31 matching lines @@
                                 const ui::LatencyInfo& latency_info,
                                 InputEventDispatchType dispatch_type);
 
   // Handle overscroll from Blink.
   void DidOverscrollFromBlink(
       const blink::WebFloatSize& overscrollDelta,
       const blink::WebFloatSize& accumulatedOverscroll,
       const blink::WebFloatPoint& position,
       const blink::WebFloatSize& velocity);
 
-  // When paused in debugger, we send ack for mouse event early. This ensures
-  // that we continue receiving mouse moves and pass them to debugger. Returns
-  // whether we are paused in mouse move event and have sent the ack.
-  bool SendAckForMouseMoveFromDebugger();
-
-  // When resumed from pause in debugger while handling mouse move,
-  // we should not send an extra ack (see SendAckForMouseMoveFromDebugger).
-  void IgnoreAckForMouseMoveFromDebugger();
-
   bool handling_input_event() const { return handling_input_event_; }
   void set_handling_input_event(bool handling_input_event) {
     handling_input_event_ = handling_input_event;
   }
 
   blink::WebInputEvent::Type handling_event_type() const {
     return handling_event_type_;
   }
 
   ui::MenuSourceType context_menu_source_type() const {
@@ skipping 18 matching lines @@
   std::unique_ptr<ui::DidOverscrollParams>* handling_event_overscroll_;
 
   // Type of the input event we are currently handling.
   blink::WebInputEvent::Type handling_event_type_;
 
   ui::MenuSourceType context_menu_source_type_;
 
   // Indicates if the next sequence of Char events should be suppressed or not.
   bool suppress_next_char_events_;
 
-  // Whether we should not send ack for the current mouse move.
-  bool ignore_ack_for_mouse_move_from_debugger_;
-
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetInputHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_INPUT_RENDER_WIDGET_INPUT_HANDLER_H_