Added isolates for remaining tests on GPU bots.

chrome/angle_unittests.isolate

 # Copyright 2013 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.
 {
   'conditions': [
-    ['OS=="android"', {
+    ['OS=="android" or OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
+        'command': [
+          '<(PRODUCT_DIR)/angle_unittests<(EXECUTABLE_SUFFIX)',
+        ],
         'isolate_dependency_tracked': [
-          '<(PRODUCT_DIR)/content_resources.pak',
-        ],
-        'isolate_dependency_untracked': [
-          'test/data/',
+          '<(PRODUCT_DIR)/angle_unittests<(EXECUTABLE_SUFFIX)',
         ],
       },
     }],
   ],
 }