Handful of tweaks for tab dragging with touch:

ui/aura/test/event_generator.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/aura/test/event_generator.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "ui/aura/event.h"
 #include "ui/aura/root_window.h"
 
@@ skipping 119 matching lines @@
 
 void EventGenerator::MoveMouseToCenterOf(Window* window) {
   MoveMouseTo(CenterOfWindowInRootWindowCoordinate(root_window_, window));
 }
 
 void EventGenerator::PressTouch() {
   TestTouchEvent touchev(ui::ET_TOUCH_PRESSED, current_location_, flags_);
   Dispatch(touchev);
 }
 
+void EventGenerator::MoveTouch(const gfx::Point& point) {
+  TestTouchEvent touchev(ui::ET_TOUCH_MOVED, point, flags_);
+  Dispatch(touchev);
+
+  current_location_ = point;
+}
+
 void EventGenerator::ReleaseTouch() {
   TestTouchEvent touchev(ui::ET_TOUCH_RELEASED, current_location_, flags_);
   Dispatch(touchev);
 }
 
 void EventGenerator::PressMoveAndReleaseTouchTo(const gfx::Point& point) {
   PressTouch();
-
-  TestTouchEvent touchev(ui::ET_TOUCH_MOVED, point, flags_);
-  Dispatch(touchev);
-
-  current_location_ = point;
-
+  MoveTouch(point);
   ReleaseTouch();
 }
 
 void EventGenerator::PressMoveAndReleaseTouchToCenterOf(Window* window) {
   PressMoveAndReleaseTouchTo(CenterOfWindowInRootWindowCoordinate(root_window_,
                                                                   window));
 }
 
 void EventGenerator::GestureTapAt(const gfx::Point& location) {
   const int kTouchId = 2;
@@ skipping 94 matching lines @@
   TestKeyEvent keyev(native_event.get(), flags);
 #else
   KeyEvent keyev(type, key_code, flags);
 #endif  // USE_X11
 #endif  // OS_WIN
   Dispatch(keyev);
 }
 
 }  // namespace test
 }  // namespace aura