Changing linux platform for chromeos.

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
===================================================================
--- chrome/chrome_browser.gypi	(revision 45985)
+++ chrome/chrome_browser.gypi	(working copy)
@@ -990,6 +990,8 @@
         'browser/extensions/extension_devtools_manager.h',
         'browser/extensions/extension_dom_ui.cc',
         'browser/extensions/extension_dom_ui.h',
+        'browser/extensions/extension_error_reporter.cc',
+        'browser/extensions/extension_error_reporter.h',
         'browser/extensions/extension_event_names.cc',
         'browser/extensions/extension_event_names.h',
         'browser/extensions/execute_code_in_tab_function.cc',
@@ -1711,6 +1713,12 @@
         'browser/password_manager/password_store_mac.cc',
         'browser/password_manager/password_store_win.h',
         'browser/password_manager/password_store_win.cc',
+        'browser/platform_util.h',
+        'browser/platform_util_linux.cc',
+        'browser/platform_util_chromeos.cc',
+        'browser/platform_util_common_linux.cc',
+        'browser/platform_util_mac.mm',
+        'browser/platform_util_win.cc',
         'browser/plugin_installer.cc',
         'browser/plugin_installer.h',
         'browser/plugin_process_host.cc',
@@ -2516,6 +2524,11 @@
             ['exclude', '^browser/chromeos'],
           ],
         }],
+        ['chromeos==1', {
+          'sources!': [
+            'browser/platform_util_linux.cc',
+          ]
+        }],
         ['OS=="linux"', {
           'dependencies': [
             '../build/linux/system.gyp:dbus-glib',