[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 fc0451f2f866dcd21953b0e2f6f6b84cb0cd53a6..053d5e80a4a863f423c71b5a2f7144da5aeace95 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -3048,6 +3048,9 @@
         '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',
@@ -3364,13 +3367,6 @@
             '../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',