Remove all uses of toolkit_use_gtk in the gyp files.

chrome/chrome_exe.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.
 
 {
   'targets': [
     {
       'target_name': 'chrome',
       'type': 'none',
       'dependencies': [ 'chrome_initial', ],
@@ skipping 156 matching lines @@
                   'conditions': [
                     ['branding=="Chrome"', {
                       'files': ['app/theme/google_chrome/product_logo_48.png']
                     }, { # else: 'branding!="Chrome"
                       'files': ['app/theme/chromium/product_logo_48.png']
                     }],
                   ],
                 },
               ],
             }],
-            ['toolkit_uses_gtk == 1', {
-              'dependencies': [
-                # On Linux, link the dependencies (libraries) that make up actual
-                # Chromium functionality directly into the executable.
-                '<@(chromium_browser_dependencies)',
-                '<@(chromium_child_dependencies)',
-                '../content/content.gyp:content_app_both',
-                # Needed for chrome_main.cc initialization of libraries.
-                '../build/linux/system.gyp:gtk',
-                # Needed to use the master_preferences functions
-                'installer_util',
-              ],
-            }, { # else toolkit_uses_gtk == 1
-              'dependencies': [
-                # On Linux, link the dependencies (libraries) that make up actual
-                # Chromium functionality directly into the executable.
-                '<@(chromium_browser_dependencies)',
-                '<@(chromium_child_dependencies)',
-                '../content/content.gyp:content_app_both',
-                # Needed for chrome_main.cc initialization of libraries.
-                '../build/linux/system.gyp:pangocairo',
-                # Needed to use the master_preferences functions
-                'installer_util',
-              ],
-            }],
             # x11 build. Needed for chrome_main.cc initialization of libraries.
             ['use_x11==1', {
               'dependencies': [
                 '../build/linux/system.gyp:x11',
                 '../build/linux/system.gyp:xext',
               ],
             }],
           ],
           'sources': [
             'app/chrome_dll_resource.h',
             'app/chrome_main.cc',
             'app/chrome_main_delegate.cc',
             'app/chrome_main_delegate.h',
           ],
+          'dependencies': [
+            # On Linux, link the dependencies (libraries) that make up actual
+            # Chromium functionality directly into the executable.
+            '<@(chromium_browser_dependencies)',
+            '<@(chromium_child_dependencies)',
+            '../content/content.gyp:content_app_both',
+            # Needed for chrome_main.cc initialization of libraries.
+            '../build/linux/system.gyp:pangocairo',
+            # Needed to use the master_preferences functions
+            'installer_util',
+          ],
         }],
         ['OS=="mac"', {
           # 'branding' is a variable defined in common.gypi
           # (e.g. "Chromium", "Chrome")
           'conditions': [
             ['branding=="Chrome"', {
               'mac_bundle_resources': [
                 'app/theme/google_chrome/mac/app.icns',
                 'app/theme/google_chrome/mac/document.icns',
                 'browser/ui/cocoa/applescript/scripting.sdef',
@@ skipping 474 matching lines @@
               'dependencies': [
                 'chrome_nacl_win64',
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }