When animating a content setting bubble smaller, hide the background later.

chrome/browser/ui/views/location_bar/icon_label_bubble_view_unittest.cc

 // Copyright 2016 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 "chrome/browser/ui/views/location_bar/icon_label_bubble_view.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/test/views_test_base.h"
@@ skipping 41 matching lines @@
       return SHRINKING;
     return STEADY;
   }
 
  protected:
   // IconLabelBubbleView:
   SkColor GetTextColor() const override { return kTestColor; }
   SkColor GetBorderColor() const override { return kTestColor; }
 
   bool ShouldShowBackground() const override {
-    return !IsShrinking() || label()->width() > 0;
+    return !IsShrinking() ||
+           (width() >= MinimumWidthForImageWithBackgroundShown());
   }
 
   double WidthMultiplier() const override {
     const double kOpenFraction =
         static_cast<double>(kOpenTimeMS) / kAnimationDurationMS;
     double fraction = value_ / (double)kNumberOfSteps;
     switch (state()) {
       case GROWING:
         return fraction / kOpenFraction;
       case STEADY:
@@ skipping 135 matching lines @@
 // The animation is first growing the bubble from zero, then keeping its size
 // constant and finally shrinking it down to its minimum size which is the image
 // size.
 // Various step sizes during animation simulate different possible timing.
 TEST_F(IconLabelBubbleViewTest, AnimateLayout) {
   VerifyWithAnimationStep(1);
   VerifyWithAnimationStep(5);
   VerifyWithAnimationStep(10);
   VerifyWithAnimationStep(25);
 }