Adds switch to disable generating mouse events from touch events and

ui/base/gestures/gesture_recognizer_impl.cc

 // Copyright (c) 2012 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 "ui/base/gestures/gesture_recognizer_impl.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
 #include "ui/base/events.h"
@@ skipping 139 matching lines @@
     return touch_id_target_[closest_point->touch_id()];
   else
     return NULL;
 }
 
 void GestureRecognizerImpl::CancelNonCapturedTouches(
     GestureConsumer* capturer) {
   std::map<int, GestureConsumer*>::iterator i;
   // Fire touch cancels, and target touch_ids to gesture_consumer_ignorer.
   for (i = touch_id_target_.begin(); i != touch_id_target_.end(); ++i) {
-    if (capturer != i->second) {
-      scoped_ptr<TouchEvent> touchEvent(helper_->CreateTouchEvent(
+    if (capturer != i->second &&
+        touch_id_target_[i->first] != gesture_consumer_ignorer_.get()) {
+      scoped_ptr<TouchEvent> touch_event(helper_->CreateTouchEvent(
             ui::ET_TOUCH_CANCELLED, gfx::Point(0, 0),
             i->first,
             base::Time::NowFromSystemTime() - base::Time()));
-      helper_->DispatchCancelTouchEvent(touchEvent.get());
+      helper_->DispatchCancelTouchEvent(touch_event.get());
       touch_id_target_[i->first] = gesture_consumer_ignorer_.get();
     }
   }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // GestureRecognizerImpl, protected:
 
 GestureSequence* GestureRecognizerImpl::CreateSequence(
     GestureEventHelper* helper) {
@@ skipping 94 matching lines @@
   if (touch_id_target_for_gestures_.count(touch_id))
     touch_id_target_for_gestures_.erase(touch_id);
 }
 
 // GestureRecognizer, static
 GestureRecognizer* GestureRecognizer::Create(GestureEventHelper* helper) {
   return new GestureRecognizerImpl(helper);
 }
 
 }  // namespace ui