Only add a WebKit dependency for shared library build.

content/content_common.gypi

 # Copyright (c) 2011 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.
 
 {
   'targets': [
     {
       'target_name': 'content_common',
       'type': '<(library)',
       'dependencies': [
         '../ipc/ipc.gyp:ipc',
         '../skia/skia.gyp:skia',
         '../third_party/icu/icu.gyp:icuuc',
         '../third_party/npapi/npapi.gyp:npapi',
-        '../third_party/WebKit/Source/WebKit/chromium/WebKit.gyp:webkit',
         '../ui/gfx/gl/gl.gyp:gl',
         '../webkit/support/webkit_support.gyp:appcache',
         '../webkit/support/webkit_support.gyp:blob',
         '../webkit/support/webkit_support.gyp:database',
         '../webkit/support/webkit_support.gyp:fileapi',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
@@ skipping 178 matching lines @@
         'common/webblobregistry_impl.cc',
         'common/webblobregistry_impl.h',
         'common/webblob_messages.h',
         'common/webmessageportchannel_impl.cc',
         'common/webmessageportchannel_impl.h',
         'common/window_container_type.cc',
         'common/window_container_type.h',
         'common/worker_messages.h',
       ],
       'conditions': [
+        # If we add this dependency on Windows, then chrome_frame.dll gets
+        # bloated with a lot of WebKit code unnecessairly.  So don't add a
+        # dependency for now, which is technically correct, but not necessary,
+        # until the code that's shared between common and chrome frame is split
+        # into a new target.
+        ['library=="shared_library"', {
+          'dependencies': [
+            '../third_party/WebKit/Source/WebKit/chromium/WebKit.gyp:webkit',
+          ],
+        }],
         ['OS=="win"', {
           'msvs_guid': '062E9260-304A-4657-A74C-0D3AA1A0A0A4',
           'sources': [
             'common/gpu/media/mft_angle_video_device.cc',
             'common/gpu/media/mft_angle_video_device.h',
           ],
           'include_dirs': [
             '<(DEPTH)/third_party/angle/include',
             '<(DEPTH)/third_party/angle/src',
             '<(DEPTH)/third_party/wtl/include',
@@ skipping 32 matching lines @@
         }],
         ['enable_gpu==1', {
           'dependencies': [
             '../gpu/gpu.gyp:command_buffer_service',
           ],
         }],
       ],
     },
   ],
 }