old_contents: {
    'targets': [
    {
      'target_name': 'echo_extension',
      'type': 'loadable_module',
      'include_dirs': [
        '../..',
      ],
      'sources': [
        'test/echo_extension.c',
      ],
      'product_dir': '<(PRODUCT_DIR)/tests/extension/echo_extension/'
    },
    {
      'target_name': 'bad_extension',
      'type': 'loadable_module',
      'include_dirs': [
        '../..',
      ],
      'sources': [
        'test/bad_extension.c',
      ],
      'product_dir': '<(PRODUCT_DIR)/tests/extension/bad_extension/'
    },
    {
      'target_name': 'multiple_entry_points_extension',
      'type': 'loadable_module',
      'include_dirs': [
        '../..',
      ],
      'sources': [
        'test/multiple_entry_points_extension.c',
      ],
      'product_dir': '<(PRODUCT_DIR)/tests/extension/multiple_extension/'
    },
    ],
  }
  
new_contents: {
    'targets': [
    {
      'target_name': 'echo_extension',
      'type': 'loadable_module',
      'include_dirs': [
        '../..',
      ],
      'sources': [
        'test/echo_extension.c',
      ],
      'conditions': [
        ['OS=="win"', {
          'product_dir': '<(PRODUCT_DIR)\\tests\\extension\\echo_extension\\'
        }, {
          'product_dir': '<(PRODUCT_DIR)/tests/extension/echo_extension/'
        }],
      ], # conditions
    },
    {
      'target_name': 'bad_extension',
      'type': 'loadable_module',
      'include_dirs': [
        '../..',
      ],
      'sources': [
        'test/bad_extension.c',
      ],
      'conditions': [
        ['OS=="win"', {
          'product_dir': '<(PRODUCT_DIR)\\tests\\extension\\bad_extension\\'
        }, {
          'product_dir': '<(PRODUCT_DIR)/tests/extension/bad_extension/'
        }],
      ], # conditions
    },
    {
      'target_name': 'multiple_entry_points_extension',
      'type': 'loadable_module',
      'include_dirs': [
        '../..',
      ],
      'sources': [
        'test/multiple_entry_points_extension.c',
      ],
      'conditions': [
        ['OS=="win"', {
          'product_dir': '<(PRODUCT_DIR)\\tests\\extension\\multiple_extension\\'
        }, {
          'product_dir': '<(PRODUCT_DIR)/tests/extension/multiple_extension/'
        }],
      ], # conditions
    },
    ],
  }
  
subject: Fix build failure on Windows