Made gl_tests, angle_unittests, and gles2_conform_test depend on base.isolate.

chrome/angle.isolate

 # Copyright 2014 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.
 {
+  'includes': [
+    '../base/base.isolate',
+  ],
   'conditions': [
     ['OS=="win"', {
       'variables': {
         'isolate_dependency_tracked': [
           '<(PRODUCT_DIR)/libEGL.dll',
           '<(PRODUCT_DIR)/libGLESv2.dll',
           '<(PRODUCT_DIR)/d3dcompiler_46.dll',
           # TODO(kbr): really need D3DCompiler_43.dll as well for XP,
           # but ANGLE doesn't contain the rule which extracts this.
         ],
       },
     }],
   ],
 }