Support InputRouter recycling

content/browser/renderer_host/input/tap_suppression_controller.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/tap_suppression_controller.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "content/browser/renderer_host/input/tap_suppression_controller_client.h"
 
@@ skipping 93 matching lines @@
       state_ = NOTHING;
       StopTapDownTimer();
       client_->DropStashedTapDown();
       return true;
     case LAST_CANCEL_STOPPED_FLING:
       NOTREACHED() << "Invalid tap end on LAST_CANCEL_STOPPED_FLING state";
   }
   return false;
 }
 
+void TapSuppressionController::Reset() {
+  if (state_ == DISABLED)
+    return;
+  tap_down_timer_.Stop();
+  if (state_ == TAP_DOWN_STASHED)
+    client_->DropStashedTapDown();
+  state_ = NOTHING;
+}
+
 base::TimeTicks TapSuppressionController::Now() {
   return base::TimeTicks::Now();
 }
 
 void TapSuppressionController::StartTapDownTimer(const base::TimeDelta& delay) {
   tap_down_timer_.Start(FROM_HERE, delay, this,
                         &TapSuppressionController::TapDownTimerExpired);
 }
 
 void TapSuppressionController::StopTapDownTimer() {
@@ skipping 14 matching lines @@
     case TAP_DOWN_STASHED:
       TRACE_EVENT0("browser",
                    "TapSuppressionController::TapDownTimerExpired");
       client_->ForwardStashedTapDown();
       state_ = NOTHING;
       break;
   }
 }
 
 }  // namespace content