gtk: Rename GtkThemeService to ThemeServiceGtk.

chrome/chrome_tests.gypi

Index: chrome/chrome_tests.gypi
diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index f58444ddfee62d71bf7ed1d2378b921686299350..235e16764e10bdc7104e31b79e10b1a214ca213e 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -1955,12 +1955,12 @@
         'browser/ui/gtk/bookmarks/bookmark_editor_gtk_unittest.cc',
         'browser/ui/gtk/bookmarks/bookmark_utils_gtk_unittest.cc',
         'browser/ui/gtk/gtk_chrome_shrinkable_hbox_unittest.cc',
-        'browser/ui/gtk/gtk_theme_service_unittest.cc',
         'browser/ui/gtk/gtk_util_unittest.cc',
         'browser/ui/gtk/omnibox/omnibox_popup_view_gtk_unittest.cc',
         'browser/ui/gtk/reload_button_gtk_unittest.cc',
         'browser/ui/gtk/status_icons/status_tray_gtk_unittest.cc',
         'browser/ui/gtk/tabs/tab_renderer_gtk_unittest.cc',
+        'browser/ui/gtk/theme_service_gtk_unittest.cc',
         'browser/ui/intents/web_intent_picker_model_unittest.cc',
         'browser/ui/intents/web_intents_model_unittest.cc',
         'browser/ui/login/login_prompt_unittest.cc',
@@ -2232,10 +2232,10 @@
                 'browser/ui/gtk/bookmarks/bookmark_bar_gtk_unittest.cc',
                 'browser/ui/gtk/bookmarks/bookmark_editor_gtk_unittest.cc',
                 'browser/ui/gtk/gtk_chrome_shrinkable_hbox_unittest.cc',
-                'browser/ui/gtk/gtk_theme_service_unittest.cc',
                 'browser/ui/gtk/omnibox/omnibox_popup_view_gtk_unittest.cc',
                 'browser/ui/gtk/reload_button_gtk_unittest.cc',
                 'browser/ui/gtk/status_icons/status_tray_gtk_unittest.cc',
+                'browser/ui/gtk/theme_service_gtk_unittest.cc',
               ],
             }],
             ['chromeos==0', {