Make it possible to include another file and port print_preview unit test to unit_tests.

chrome/chrome_tests.gypi

Index: chrome/chrome_tests.gypi
diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index 829fa472ddb6570601459722c7eb47c22486e3bf..6f67b70d235926fbf8a1e8d22750531a3eb11fda 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -1518,6 +1518,8 @@
         'browser/profiles/profile_info_cache_unittest.cc',
         'browser/profiles/profile_manager_unittest.cc',
         'browser/renderer_host/web_cache_manager_unittest.cc',
+        'browser/resources/print_preview/print_preview_utils.js',
+        'browser/resources/print_preview/print_preview_utils_unittest.gtestjs',
         'browser/resources_util_unittest.cc',
         'browser/rlz/rlz_unittest.cc',
         'browser/safe_browsing/bloom_filter_unittest.cc',
@@ -1944,7 +1946,7 @@
         'test/base/v8_unit_test.cc',
         'test/base/v8_unit_test.h',
         'test/data/resource.rc',
-        'test/data/unit/framework_unittest.js',
+        'test/data/unit/framework_unittest.gtestjs',
         'tools/convert_dict/convert_dict_unittest.cc',
         '../content/browser/renderer_host/render_widget_host_unittest.cc',
         '../content/browser/renderer_host/text_input_client_mac_unittest.mm',
@@ -1968,8 +1970,22 @@
       ],
       'rules': [
         {
-          'rule_name': 'js2unit',
+          'rule_name': 'copyjs',
           'extension': 'js',
+          'inputs': [],
+          'outputs': [
+            '<(PRODUCT_DIR)/test_data/chrome/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).<(_extension)',
+          ],
+          'action': [
+            'python',
+            '-c', 'import shutil,sys; shutil.copyfile(sys.argv[1], sys.argv[2])',
+            '<@(_inputs)', '<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).<(_extension)',
+            '<@(_outputs)',
+          ],
+        },
+        {
+          'rule_name': 'js2unit',
+          'extension': 'gtestjs',
           'msvs_external_rule': 1,
           'inputs': [
             '<(gypv8sh)',
@@ -1980,7 +1996,7 @@
           ],
           'outputs': [
             '<(js2gtest_out_dir)/chrome/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).cc',
-            '<(PRODUCT_DIR)/test_data/chrome/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).js',
+            '<(PRODUCT_DIR)/test_data/chrome/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).<(_extension)',
           ],
           'process_outputs_as_sources': 1,
           'action': [
@@ -1988,7 +2004,7 @@
             '<@(_inputs)',
             'unit',
             '<(RULE_INPUT_PATH)',
-            'chrome/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).js',
+            'chrome/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).<(_extension)',
             '<@(_outputs)',
           ],
         },