Remove unused code (gaia_oauth_fetcher).

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 99615c0365854c82486d8964e6d4db6f5a862aee..8ca20b6573f11a0ccad48cc8f8f8a0a6e70505e0 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -1243,9 +1243,6 @@
         'browser/net/evicted_domain_cookie_counter.h',
         'browser/net/firefox_proxy_settings.cc',
         'browser/net/firefox_proxy_settings.h',
-        'browser/net/gaia/gaia_oauth_consumer.h',
-        'browser/net/gaia/gaia_oauth_fetcher.cc',
-        'browser/net/gaia/gaia_oauth_fetcher.h',
         'browser/net/http_pipelining_compatibility_client.cc',
         'browser/net/http_pipelining_compatibility_client.h',
         'browser/net/http_server_properties_manager.cc',
@@ -2911,9 +2908,6 @@
             'browser/extensions/api/terminal/terminal_extension_helper.h',
             'browser/extensions/api/terminal/terminal_private_api.cc',
             'browser/extensions/api/terminal/terminal_private_api.h',
-            'browser/net/gaia/gaia_oauth_consumer.h',
-            'browser/net/gaia/gaia_oauth_fetcher.cc',
-            'browser/net/gaia/gaia_oauth_fetcher.h',
             'browser/renderer_host/offline_resource_throttle.cc',
             'browser/renderer_host/offline_resource_throttle.h',
             'browser/renderer_host/pepper/pepper_platform_verification_message_filter.cc',
@@ -3187,7 +3181,6 @@
             'browser/sync/sync_global_error.h',
 
             'browser/download/download_crx_util.cc',
-            'browser/net/gaia/gaia_oauth_fetcher.cc',
             'browser/policy/cloud/user_policy_signin_service.cc',
             'browser/policy/cloud/user_policy_signin_service.h',
             'browser/sessions/persistent_tab_restore_service.cc',