Rename omaha_client and similar tokens to update_client in all contexts.

extensions/shell/app_shell.gyp

Index: extensions/shell/app_shell.gyp
diff --git a/extensions/shell/app_shell.gyp b/extensions/shell/app_shell.gyp
index 69581f2c64176bdb832456719270438879051e3d..600d656d30ff019093cd35309eda0a83a253905c 100644
--- a/extensions/shell/app_shell.gyp
+++ b/extensions/shell/app_shell.gyp
@@ -19,8 +19,8 @@
         'app_shell_version_header',
         '<(DEPTH)/base/base.gyp:base',
         '<(DEPTH)/base/base.gyp:base_prefs',
-        '<(DEPTH)/components/components.gyp:omaha_client',
         '<(DEPTH)/components/components.gyp:pref_registry',
+        '<(DEPTH)/components/components.gyp:update_client',
         '<(DEPTH)/components/components.gyp:user_prefs',
         '<(DEPTH)/components/components.gyp:web_cache_renderer',
         '<(DEPTH)/content/content.gyp:content',
@@ -111,8 +111,6 @@
         'browser/shell_network_delegate.h',
         'browser/shell_oauth2_token_service.cc',
         'browser/shell_oauth2_token_service.h',
-        'browser/shell_omaha_query_params_delegate.cc',
-        'browser/shell_omaha_query_params_delegate.h',
         'browser/shell_prefs.cc',
         'browser/shell_prefs.h',
         'browser/shell_runtime_api_delegate.cc',
@@ -121,6 +119,8 @@
         'browser/shell_special_storage_policy.h',
         'browser/shell_speech_recognition_manager_delegate.cc',
         'browser/shell_speech_recognition_manager_delegate.h',
+        'browser/shell_update_query_params_delegate.cc',
+        'browser/shell_update_query_params_delegate.h',
         'browser/shell_url_request_context_getter.cc',
         'browser/shell_url_request_context_getter.h',
         'browser/shell_web_contents_modal_dialog_manager.cc',