Make the gyp files more cross-platform across the Unices

chrome/chrome.gyp

Index: chrome/chrome.gyp
diff --git a/chrome/chrome.gyp b/chrome/chrome.gyp
index 80fd58c3e1380d6758c9ce8e4ffe75a741c44a1c..13a64a0d073258a549e583e906a9b674b9d5727a 100644
--- a/chrome/chrome.gyp
+++ b/chrome/chrome.gyp
@@ -73,6 +73,10 @@
           }],
         ],
       },],
+      ['os_posix==1 and OS!="mac" and OS!="linux"', {
+        'platform_locale_settings_grd':
+            'app/resources/locale_settings_linux.grd',
+      },],
       ['OS=="mac"', {
         'tweak_info_plist_path': 'tools/build/mac/tweak_info_plist',
         'nacl_defines': [
@@ -457,7 +461,7 @@
         'browser/debugger/inspectable_tab_proxy.h',
       ],
       'conditions': [
-        ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris"', {
+        ['toolkit_uses_gtk==1', {
           'dependencies': [
             '../build/linux/system.gyp:gtk',
           ],
@@ -481,7 +485,7 @@
         '..',
       ],
       'conditions': [
-        ['OS=="linux"', {
+        ['toolkit_uses_gtk==1', {
           'dependencies': [
             '../build/linux/system.gyp:gtk',
           ],
@@ -702,7 +706,7 @@
             'browser/sync/util/data_encryption.h',
           ],
         }],
-        ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris"', {
+        ['toolkit_uses_gtk==1', {
           'dependencies': [
             '../build/linux/system.gyp:gtk',
           ],
@@ -833,7 +837,7 @@
             'service/cloud_print/print_system_win.cc',
           ],
         }],
-        ['OS=="linux"', {
+        ['toolkit_uses_gtk==1', {
           'dependencies': [
             '../build/linux/system.gyp:gtk',
           ],
@@ -1520,7 +1524,7 @@
         },
       ]},  # 'targets'
     ],  # OS=="win"
-    ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris"', {
+    ['os_posix==1 and OS!="mac"', {
       'targets': [{
         'target_name': 'packed_resources',
         'type': 'none',
@@ -1621,7 +1625,7 @@
           },
         ],
       }],  # targets
-    }],  # OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris"
+    }],  # os_posix==1 and OS!="mac"
   ],  # 'conditions'
 }