input: Make the OverscrollController less intrusive, and some code cleanup.

content/browser/renderer_host/input/immediate_input_router.cc

 // Copyright 2013 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.
 
 #include "content/browser/renderer_host/input/immediate_input_router.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "content/browser/renderer_host/input/gesture_event_filter.h"
 #include "content/browser/renderer_host/input/input_ack_handler.h"
@@ skipping 269 matching lines @@
   // still events in the touch-queue. In such cases, the new events should still
   // get into the queue.
   return has_touch_handler_ || !touch_event_queue_->empty();
 }
 
 bool ImmediateInputRouter::ShouldForwardGestureEvent(
     const GestureEventWithLatencyInfo& touch_event) const {
   return gesture_event_filter_->ShouldForward(touch_event);
 }
 
-bool ImmediateInputRouter::HasQueuedGestureEvents() const {
-  return gesture_event_filter_->HasQueuedGestureEvents();
-}
-
 bool ImmediateInputRouter::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   bool message_is_ok = true;
   IPC_BEGIN_MESSAGE_MAP_EX(ImmediateInputRouter, message, message_is_ok)
     IPC_MESSAGE_HANDLER(InputHostMsg_HandleInputEvent_ACK, OnInputEventAck)
     IPC_MESSAGE_HANDLER(ViewHostMsg_MoveCaret_ACK, OnMsgMoveCaretAck)
     IPC_MESSAGE_HANDLER(ViewHostMsg_SelectRange_ACK, OnSelectRangeAck)
     IPC_MESSAGE_HANDLER(ViewHostMsg_HasTouchEventHandlers,
                         OnHasTouchEventHandlers)
     IPC_MESSAGE_UNHANDLED(handled = false)
@@ skipping 265 matching lines @@
   if (gesture_event.event.type == WebInputEvent::GestureScrollBegin)
     touch_event_queue_->set_no_touch_move_to_renderer(true);
 
   if (gesture_event.event.type == WebInputEvent::GestureScrollEnd ||
       gesture_event.event.type == WebInputEvent::GestureFlingStart) {
     touch_event_queue_->set_no_touch_move_to_renderer(false);
   }
 }
 
 }  // namespace content