Move AccessibilityHighlightManagerTest to interactive_ui_tests

chrome/browser/chromeos/accessibility/accessibility_highlight_manager_interactive_uitest.cc

 // Copyright (c) 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/chromeos/accessibility/accessibility_highlight_manager.h"
 
 #include "ash/shell.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/run_loop.h"
@@ skipping 120 matching lines @@
         base::Bind(&AccessibilityHighlightManagerTest::GotSnapshot, this));
     base::RunLoop run_loop;
     run_loop_quitter_ = run_loop.QuitClosure();
     run_loop.Run();
   }
 
   base::Closure run_loop_quitter_;
   gfx::Image image_;
   SkBitmap before_bmp_;
   SkBitmap after_bmp_;
-  int diff_count_;
-  SkColor average_diff_color_;
+  int diff_count_ = 0;
+  SkColor average_diff_color_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(AccessibilityHighlightManagerTest);
 };
 
 IN_PROC_BROWSER_TEST_F(AccessibilityHighlightManagerTest,
                        TestCaretRingDrawsBluePixels) {
   gfx::Rect capture_bounds(200, 300, 100, 100);
   gfx::Rect caret_bounds(230, 330, 1, 25);
 
   CaptureBeforeImage(capture_bounds);
@@ skipping 59 matching lines @@
   // This is a smoke test to assert that something is drawn in the right
   // part of the screen of approximately the right size and color.
   // There's deliberately some tolerance for tiny errors.
   EXPECT_NEAR(1608, diff_count(), 50);
   EXPECT_NEAR(255, SkColorGetR(average_diff_color()), 5);
   EXPECT_NEAR(201, SkColorGetG(average_diff_color()), 5);
   EXPECT_NEAR(152, SkColorGetB(average_diff_color()), 5);
 }
 
 }  // namespace chromeos