Revert of Move content_gl_tests.isolate to content.

chrome/chrome_tests.gypi

 # 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.
 {
   'includes': [
     'js_unittest_vars.gypi',
   ],
   'targets': [
     {
       'target_name': 'interactive_ui_tests',
@@ skipping 2932 matching lines @@
               ],
               'includes': [
                 '../build/isolate.gypi',
                 'angle_unittests.isolate',
               ],
               'sources': [
                 'angle_unittests.isolate',
               ],
             },
             {
+              'target_name': 'content_gl_tests_run',
+              'type': 'none',
+              'dependencies': [
+                '../content/content_shell_and_tests.gyp:content_gl_tests',
+                'chrome_run',
+              ],
+              'includes': [
+                '../build/isolate.gypi',
+                'content_gl_tests.isolate',
+              ],
+              'sources': [
+                'content_gl_tests.isolate',
+              ],
+            },
+            {
               'target_name': 'gl_tests_run',
               'type': 'none',
               'dependencies': [
                 '../gpu/gpu.gyp:gl_tests',
               ],
               'includes': [
                 '../build/isolate.gypi',
                 'gl_tests.isolate',
               ],
               'sources': [
@@ skipping 85 matching lines @@
             ['enable_webrtc==1', {
               'dependencies': [
                 '../third_party/libjingle/libjingle.gyp:libjingle_webrtc'
               ]
             }],
           ],
         }]
     }],
   ],  # 'conditions'
 }