[test fixlet] Add tests for the zoom icon in the location bar on GTK.

chrome/chrome_tests.gypi

Index: chrome/chrome_tests.gypi
diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index c7fc8625b724b269cb9cc7da0227834e7a89c975..803e2fdef9d5b48248cabbec59f0b089f364c01b 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -507,6 +507,7 @@
         'browser/task_manager/task_manager_browsertest_util.cc',
         'browser/ui/fullscreen/fullscreen_controller_interactive_browsertest.cc',
         'browser/ui/gtk/bookmarks/bookmark_bar_gtk_interactive_uitest.cc',
+        'browser/ui/gtk/zoom_bubble_gtk_browsertest.cc',
         'browser/ui/omnibox/omnibox_view_browsertest.cc',
         'browser/ui/panels/detached_panel_browsertest.cc',
         'browser/ui/panels/docked_panel_browsertest.cc',
@@ -3040,6 +3041,9 @@
         'browser/ui/find_bar/find_bar_host_browsertest.cc',
         'browser/ui/fullscreen/fullscreen_controller_browsertest.cc',
         'browser/ui/global_error/global_error_service_browsertest.cc',
+        'browser/ui/gtk/bubble/bubble_gtk_browsertest.cc',
+        'browser/ui/gtk/confirm_bubble_gtk_browsertest.cc',
+        'browser/ui/gtk/location_bar_view_gtk_browsertest.cc',
         'browser/ui/gtk/one_click_signin_bubble_gtk_browsertest.cc',
         'browser/ui/gtk/view_id_util_browsertest.cc',
         'browser/ui/intents/web_intent_picker_controller_browsertest.cc',
@@ -3354,13 +3358,6 @@
             '../build/linux/system.gyp:ssl',
           ],
         }],
-        ['toolkit_uses_gtk == 1 and toolkit_views == 0', {
-          'sources': [
-            # BubbleGtk is used only on Linux/GTK.
-            'browser/ui/gtk/bubble/bubble_gtk_browsertest.cc',
-            'browser/ui/gtk/confirm_bubble_gtk_browsertest.cc',
-          ],
-        }],
         ['OS=="mac"', {
           'include_dirs': [
             '../third_party/GTM',