Factor out content shell and tests into a standalone gyp

content/content.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 1,  # Use higher warning level.
     'chromium_enable_vtune_jit_for_v8%': 0,  # enable the vtune support for V8 engine.
     'directxsdk_exists': '<!(python <(DEPTH)/build/dir_exists.py ../third_party/directxsdk)',
   },
@@ skipping 10 matching lines @@
       }],
     ],
   },
   'includes': [
     'content_tests.gypi',
   ],
   'conditions': [
     ['OS != "ios"', {
       'includes': [
         '../build/win_precompile.gypi',
-        'content_shell.gypi',
       ],
     }],
     # In component mode, we build all of content as a single DLL.
     # However, in the static mode, we need to build content as multiple
     # targets in order to prevent dependencies from getting introduced
     # upstream unnecessarily (e.g., content_renderer depends on allocator
     # and chrome_exe depends on content_common but we don't want
     # chrome_exe to have to depend on allocator).
     ['component=="static_library"', {
       'target_defines': [
@@ skipping 412 matching lines @@
             'include_dirs': [
               '<(SHARED_INTERMEDIATE_DIR)/content',
             ],
           },
           'includes': [ 'content_jni.gypi' ],
         },
       ],
     }],  # OS == "android"
   ],
 }