Displays the calibration complete message to touch calibration and gracefully quits

ui/display/manager/chromeos/touch_transform_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/display/manager/chromeos/touch_transform_controller.h"
 
 #include <utility>
 #include <vector>
 
 #include "third_party/skia/include/core/SkMatrix44.h"
@@ skipping 192 matching lines @@
 
 #if defined(USE_OZONE)
   // Translate the touch so that it falls within the display bounds. This
   // should not be performed if the displays are mirrored.
   if (display.id() == touch_display.id()) {
     ctm.Translate(display.bounds_in_native().x(),
                   display.bounds_in_native().y());
   }
 #endif
 
+  // If the device is currently under calibration, then do not return any
+  // transform as we want to use the raw native touch input data for calibration
+  if (is_calibrating_)
+    return ctm;
+
   // If touch calibration data is unavailable, use naive approach.
   if (!touch_display.has_touch_calibration_data()) {
     return GetUncalibratedTransform(ctm, display, touch_display, touch_area,
                                     touch_native_size);
   }
 
   // The resolution at which the touch calibration was performed.
   gfx::SizeF touch_calib_size(touch_display.GetTouchCalibrationData().bounds);
 
   // Any additional transfomration that needs to be applied to the display
@@ skipping 134 matching lines @@
     // WindowTreeHost.
     UpdateTouchTransform(display1_id, display1, display1);
     UpdateTouchTransform(display2_id, display2, display2);
     return;
   }
 
   // Single display mode. The WindowTreeHost has one associated display id.
   UpdateTouchTransform(single_display_id, single_display, single_display);
 }
 
+void TouchTransformController::SetForCalibration(bool is_calibrating) {
+  is_calibrating_ = is_calibrating;
+  UpdateTouchTransforms();
+}
+
 }  // namespace display