skia: Add 'skia_unittests' test suite for this directory.

chrome/chrome_tests_unit.gypi

Index: chrome/chrome_tests_unit.gypi
diff --git a/chrome/chrome_tests_unit.gypi b/chrome/chrome_tests_unit.gypi
index 9b59028756daf0f6505bb66ab0185552bf5b5e46..c40839a45157ec3bf299cead5fe11461270968f1 100644
--- a/chrome/chrome_tests_unit.gypi
+++ b/chrome/chrome_tests_unit.gypi
@@ -1424,17 +1424,6 @@
       '../components/search_engines/template_url_service_sync_unittest.cc',
       '../components/search_engines/template_url_service_unittest.cc',
 
-      '../skia/ext/analysis_canvas_unittest.cc',
-      '../skia/ext/bitmap_platform_device_mac_unittest.cc',
-      '../skia/ext/convolver_unittest.cc',
-      '../skia/ext/image_operations_unittest.cc',
-      '../skia/ext/pixel_ref_utils_unittest.cc',
-      '../skia/ext/platform_canvas_unittest.cc',
-      '../skia/ext/recursive_gaussian_convolution_unittest.cc',
-      '../skia/ext/refptr_unittest.cc',
-      '../skia/ext/skia_utils_ios_unittest.mm',
-      '../skia/ext/skia_utils_mac_unittest.mm',
-      '../skia/ext/vector_canvas_unittest.cc',
       '../testing/gtest_mac_unittest.mm',
       '../third_party/zlib/google/zip_reader_unittest.cc',
       '../third_party/zlib/google/zip_unittest.cc',
@@ -2484,11 +2473,6 @@
             'tools/convert_dict/convert_dict.gyp:convert_dict_lib',
           ],
         }],
-        ['OS!="win" and OS!="mac"', {
-          'sources!': [
-            '../skia/ext/platform_canvas_unittest.cc',
-          ],
-        }],
         ['OS=="win" or OS=="mac"', {
           'sources': [
             'browser/media_galleries/fileapi/itunes_file_util_unittest.cc',
@@ -2567,7 +2551,6 @@
             'browser/search_engines/template_url_scraper_unittest.cc',
             'browser/ui/views/extensions/browser_action_drag_data_unittest.cc',
             'test/data/resource.rc',
-            '../skia/ext/vector_canvas_unittest.cc',
           ],
         }],
         ['OS=="android" or OS=="ios"', {