Switch googletest and googlemock to pull from the GitHub git repository

test/test_test.gyp

 # Copyright 2015 The Crashpad Authors. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
 {
   'includes': [
     '../build/crashpad.gypi',
   ],
   'targets': [
     {
       'target_name': 'crashpad_test_test',
       'type': 'executable',
       'dependencies': [
         'crashpad_test_test_multiprocess_exec_test_child',
         'test.gyp:crashpad_test',
         '../compat/compat.gyp:crashpad_compat',
-        '../third_party/gmock/gmock.gyp:gmock',
-        '../third_party/gmock/gmock.gyp:gmock_main',
+        '../third_party/gtest/gmock.gyp:gmock',
+        '../third_party/gtest/gmock.gyp:gmock_main',
         '../third_party/gtest/gtest.gyp:gtest',
         '../third_party/mini_chromium/mini_chromium.gyp:base',
         '../util/util.gyp:crashpad_util',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         'mac/mach_multiprocess_test.cc',
         'multiprocess_exec_test.cc',
         'multiprocess_posix_test.cc',
         'paths_test.cc',
         'scoped_temp_dir_test.cc',
         'win/win_child_process_test.cc',
         'win/win_multiprocess_test.cc',
       ],
     },
     {
       'target_name': 'crashpad_test_test_multiprocess_exec_test_child',
       'type': 'executable',
       'sources': [
         'multiprocess_exec_test_child.cc',
       ],
     },
   ],
 }