Stop weak linking CoreImage.

chrome/chrome_browser.gypi

 # Copyright 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': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 3398 matching lines @@
           ],
           # A few sources had been brought up for iOS before the decision not to
           # use chrome/ for iOS long-term. Keep building them to prevent iOS
           # regressions until they have been componentized.
           'sources': [
             '<@(chrome_browser_ios_sources)',
             '<@(chrome_browser_google_sources)',
           ],
           'link_settings': {
             'libraries': [
+              '$(SDKROOT)/System/Library/Frameworks/CoreImage.framework',
               '$(SDKROOT)/System/Library/Frameworks/CoreTelephony.framework',
               '$(SDKROOT)/System/Library/Frameworks/CoreText.framework',
               '$(SDKROOT)/System/Library/Frameworks/MobileCoreServices.framework',
               '$(SDKROOT)/System/Library/Frameworks/QuartzCore.framework',
             ],
-            # CoreImage is iOS 5+, but iOS 4.3 is still supported.
-            'xcode_settings': {'OTHER_LDFLAGS': ['-weak_framework CoreImage']},
           },
         }],
         ['OS=="win" or OS=="mac"', {
           'sources': [
             '<@(chrome_browser_win_mac_sources)',
           ],
         }],
         ['OS!="win" and OS!="mac" and OS!="ios"', {
           'sources': [
             'browser/net/net_error_diagnostics_dialog_generic.cc',
@@ skipping 766 matching lines @@
             '../components/components.gyp:rlz',
             '../components/components.gyp:search_engines',
             '../rlz/rlz.gyp:rlz_lib',
             'common',
           ],
         },
       ],
     }],
   ],
 }