Added accurate TouchToMouseMode testing to SplitTap

ui/chromeos/touch_exploration_controller.cc

 // Copyright 2014 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/chromeos/touch_exploration_controller.h"
 
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/window.h"
@@ skipping 365 matching lines @@
       return EVENT_REWRITE_DISCARD;
 
     // Rewrite at location of last touch exploration.
     rewritten_event->reset(
         new ui::TouchEvent(ui::ET_TOUCH_RELEASED,
                            last_touch_exploration_->location(),
                            initial_press_->touch_id(),
                            event.time_stamp()));
     (*rewritten_event)->set_flags(event.flags());
     state_ = TOUCH_EXPLORATION;
+    EnterTouchToMouseMode();
     VLOG_STATE();
     return ui::EVENT_REWRITE_REWRITTEN;
   }
   NOTREACHED() << "Unexpected event type received.";
   return ui::EVENT_REWRITE_CONTINUE;
 }
 
 void TouchExplorationController::OnTapTimerFired() {
   switch (state_) {
     case SINGLE_TAP_RELEASED:
@@ skipping 108 matching lines @@
       return "TOUCH_EXPLORATION";
     case PASSTHROUGH_MINUS_ONE:
       return "PASSTHROUGH_MINUS_ONE";
     case TOUCH_EXPLORE_SECOND_PRESS:
       return "TOUCH_EXPLORE_SECOND_PRESS";
   }
   return "Not a state";
 }
 
 }  // namespace ui