mac: Remove explicit dependency from chrome_app_unittests on webcore.

chrome/chrome_tests.gypi

 # 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' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
       'common/pref_names.cc',
@@ skipping 2559 matching lines @@
         'app/breakpad_unittest_win.cc',
         'app/hard_error_handler_win.cc',
         'app/run_all_unittests.cc'
       ],
       'conditions': [
         ['OS=="mac"', {
           # TODO(mark): We really want this for all non-static library targets,
           # but when we tried to pull it up to the common.gypi level, it broke
           # other things like the ui, startup, and page_cycler tests. *shrug*
           'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-ObjC']},
-
-          # libwebcore.a is so large that ld may not have a sufficiently large
-          # "hole" in its address space into which it can be mmaped by the
-          # time it reaches this library. As of May 10, 2010, libwebcore.a is
-          # about 1GB in some builds. In the Mac OS X 10.5 toolchain, using
-          # Xcode 3.1, ld is only a 32-bit executable, and address space
-          # exhaustion is the result, with ld failing and producing
-          # the message:
-          # ld: in .../libwebcore.a, can't map file, errno=12
-          #
-          # As a workaround, ensure that libwebcore.a appears to ld first when
-          # linking unit_tests. This allows the library to be mmapped when
-          # ld's address space is "wide open." Other libraries are small
-          # enough that they'll be able to "squeeze" into the remaining holes.
-          # The Mac linker isn't so sensitive that moving this library to the
-          # front of the list will cause problems.
-          #
-          # Enough pluses to make this target get prepended to the target's
-          # list of dependencies.
-          'dependencies+++': [
-            '../third_party/WebKit/Source/WebCore/WebCore.gyp/WebCore.gyp:webcore',
-          ],
         }],
         ['OS=="win"', {
           'dependencies': [
             # breakpad is currently only tested on Windows.
             '../breakpad/breakpad.gyp:*',
           ],
           'conditions': [
             ['win_use_allocator_shim==1', {
               'dependencies': [
                 '<(allocator_target)',
@@ skipping 2140 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }