Add isolate/swarming support for webkit_unit_tests.

Source/web/webkit_unit_tests.isolate

Index: Source/web/webkit_unit_tests.isolate
diff --git a/Source/platform/blink_heap_unittests.isolate b/Source/web/webkit_unit_tests.isolate
similarity index 54%
copy from Source/platform/blink_heap_unittests.isolate
copy to Source/web/webkit_unit_tests.isolate
index bf886439182416a86e0416e66251e0415d33846f..db05646f7615755144d36a05dfb5b2c56ac27369 100644
--- a/Source/platform/blink_heap_unittests.isolate
+++ b/Source/web/webkit_unit_tests.isolate
@@ -2,12 +2,23 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
+  'variables': {
+    'files': [
+      '<(PRODUCT_DIR)/content_shell.pak',
+      'tests/data/',
+      # Required by some image decoder tests.
+      '../platform/image-decoders/testing/',
+      '../../LayoutTests/fast/images/resources/',
+      # Required by some font tests.
+      '../platform/testing/data/',
+    ],
+  },
   'conditions': [
     ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'command': [
           '<(DEPTH)/testing/test_env.py',
-          '<(PRODUCT_DIR)/blink_heap_unittests<(EXECUTABLE_SUFFIX)',
+          '<(PRODUCT_DIR)/webkit_unit_tests<(EXECUTABLE_SUFFIX)',
           '--brave-new-test-launcher',
           '--test-launcher-bot-mode',
           '--asan=<(asan)',
@@ -16,7 +27,7 @@
         ],
         'files': [
           '<(DEPTH)/testing/test_env.py',
-          '<(PRODUCT_DIR)/blink_heap_unittests<(EXECUTABLE_SUFFIX)',
+          '<(PRODUCT_DIR)/webkit_unit_tests<(EXECUTABLE_SUFFIX)',
         ],
       },
     }],
@@ -24,5 +35,7 @@
   'includes': [
     '../../../../base/base.isolate',
     '../../../../gin/v8.isolate',
+    # Required on Android to copy icudtl.dat to a device.
+    "../../../../third_party/icu/icu.isolate",
   ],
 }