Bump CSS3DBlueBox pixel test revision number to force rebaseline.

content/test/gpu/gpu_tests/pixel_test_pages.py

 # 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.
 
 class PixelTestPage(object):
   """A wrapper class mimicking the functionality of the PixelTestsStorySet
   from the old-style GPU tests.
   """
   def __init__(self, url, name, test_rect, revision,
                expected_colors=None, tolerance=2, browser_args=None):
@@ skipping 40 matching lines @@
     PixelTestPage(
       'pixel_canvas2d.html',
       base_name + '_Canvas2DRedBox',
       test_rect=[0, 0, 300, 300],
       revision=7),
 
     PixelTestPage(
       'pixel_css3d.html',
       base_name + '_CSS3DBlueBox',
       test_rect=[0, 0, 300, 300],
-      revision=15),
+      revision=16),
 
     PixelTestPage(
       'pixel_webgl_aa_alpha.html',
       base_name + '_WebGLGreenTriangle_AA_Alpha',
       test_rect=[0, 0, 300, 300],
       revision=1),
 
     PixelTestPage(
       'pixel_webgl_noaa_alpha.html',
       base_name + '_WebGLGreenTriangle_NoAA_Alpha',
@@ skipping 233 matching lines @@
       test_rect=[0, 0, 300, 300],
       revision=3),
     PixelTestPage(
       'filter_effects.html',
       base_name + '_CSSFilterEffects_NoOverlays',
       test_rect=[0, 0, 300, 300],
       revision=3,
       tolerance=10,
       browser_args=['--disable-mac-overlays']),
   ]