[Autofill] Migrate ContentAutofillDriver<-->AutofillAgent IPCs to mojo.

chrome/chrome_tests.gypi

Index: chrome/chrome_tests.gypi
diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index 3563332676d2b9110ab14b42325d4f5591812d22..4d6f4a6289b87ecfed9d3c1b3dde90d372739ba9 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -2653,6 +2653,10 @@
             # TODO(dbeam): log webui URLs on iOS and test them.
             'browser/ui/webui/log_web_ui_url_browsertest.cc',
           ],
+        }, { # else: OS != "ios"
+          'dependencies': [
+            '../mojo/mojo_base.gyp:mojo_common_lib',
+          ],
         }],
         ['OS!="android" and OS!="ios"', {
           'sources': [