Adds background fade in animation and exit label to touch calibrator view

chrome/browser/chromeos/display/touch_calibrator/touch_calibrator_view.h

Index: chrome/browser/chromeos/display/touch_calibrator/touch_calibrator_view.h
diff --git a/chrome/browser/chromeos/display/touch_calibrator/touch_calibrator_view.h b/chrome/browser/chromeos/display/touch_calibrator/touch_calibrator_view.h
index aeaf20fd86684433e81664e8d1928cca47619958..67b759858cafc7935c0e2175602a2dc69cbb0be8 100644
--- a/chrome/browser/chromeos/display/touch_calibrator/touch_calibrator_view.h
+++ b/chrome/browser/chromeos/display/touch_calibrator/touch_calibrator_view.h
@@ -11,9 +11,15 @@
 #include "ui/views/view.h"
 
 namespace views {
+class Label;
 class Widget;
 }
 
+namespace gfx {
+class Animation;
+class LinearAnimation;
+}
+
 namespace chromeos {
 
 // An overlay view used during touch calibration. This view is responsible for
@@ -72,10 +78,16 @@ class TouchCalibratorView : public views::View, public gfx::AnimationDelegate {
   // the touch calibration UX.
   bool GetDisplayPointLocation(gfx::Point* location);
 
+  // Skips/Cancels any current ongoing animation to the end. This is used during
+  // testing.
+  void SkipCurrentAnimation();

[stevenjb, 2016/12/22 22:03:33]

If this is only used for testing, just name it SkipCurrentAnimationForTest().

[malaykeshav, 2016/12/23 00:09:06]

Done

+
   // Returns the current state of the view.
   State state() { return state_; }
 
  private:
+  void InitViewContents();
+
   // The target display on which this view is rendered on.
   const display::Display display_;
 
@@ -84,6 +96,23 @@ class TouchCalibratorView : public views::View, public gfx::AnimationDelegate {
 
   std::unique_ptr<views::Widget> widget_;
 
+  SkPaint paint_;
+
+  // Defines the bounds for the background animation.
+  gfx::RectF background_rect_;
+
+  // Text label indicating how to exit the touch calibration.
+  views::Label* exit_label_;
+
+  // Start and end opacity values used during the fade animation. This is set
+  // before the animation begins.
+  float start_opacity_value_;
+  float end_opacity_value_;
+
+  // Linear animation used for various aniations including fade-in, fade out,
+  // and view translation.
+  std::unique_ptr<gfx::LinearAnimation> animator_;
+
   State state_ = UNKNOWN;
 
   DISALLOW_COPY_AND_ASSIGN(TouchCalibratorView);