Update from chromium https://crrev.com/302282

cc/cc_tests.gyp

Index: cc/cc_tests.gyp
diff --git a/cc/cc_tests.gyp b/cc/cc_tests.gyp
index 2724ec04319c7dc46aaa4cd2b76c5569c24352b9..1300d3203f84b63ea9c7725a2fa09e25b4ae2120 100644
--- a/cc/cc_tests.gyp
+++ b/cc/cc_tests.gyp
@@ -107,6 +107,7 @@
       'trees/layer_tree_host_pixeltest_masks.cc',
       'trees/layer_tree_host_pixeltest_on_demand_raster.cc',
       'trees/layer_tree_host_pixeltest_readback.cc',
+      'trees/layer_tree_host_pixeltest_synchronous.cc',
       'trees/layer_tree_host_unittest.cc',
       'trees/layer_tree_host_unittest_animation.cc',
       'trees/layer_tree_host_unittest_context.cc',
@@ -198,6 +199,8 @@
       'test/layer_tree_host_common_test.h',
       'test/layer_tree_json_parser.cc',
       'test/layer_tree_json_parser.h',
+      'test/layer_tree_pixel_resource_test.cc',
+      'test/layer_tree_pixel_resource_test.h',
       'test/layer_tree_pixel_test.cc',
       'test/layer_tree_pixel_test.h',
       'test/layer_tree_test.cc',
@@ -237,6 +240,8 @@
       'test/test_gles2_interface.h',
       'test/test_gpu_memory_buffer_manager.cc',
       'test/test_gpu_memory_buffer_manager.h',
+      'test/test_image_factory.cc',
+      'test/test_image_factory.h',
       'test/test_now_source.cc',
       'test/test_now_source.h',
       'test/test_occlusion_tracker.h',