Enable find-in-page across GuestViews.

chrome/browser/apps/guest_view/web_view_browsertest.cc

Index: chrome/browser/apps/guest_view/web_view_browsertest.cc
diff --git a/chrome/browser/apps/guest_view/web_view_browsertest.cc b/chrome/browser/apps/guest_view/web_view_browsertest.cc
index 05b19b2c14332aa4b587185774adbcf73111ea1d..e4340748c3087749d4fc5df1db9f5e2ce7a415a5 100644
--- a/chrome/browser/apps/guest_view/web_view_browsertest.cc
+++ b/chrome/browser/apps/guest_view/web_view_browsertest.cc
@@ -3038,6 +3038,10 @@ IN_PROC_BROWSER_TEST_P(WebViewTest, Shim_TestFindAPI_findupdate) {
   TestHelper("testFindAPI_findupdate", "web_view/shim", NO_TEST_SERVER);
 }
 
+IN_PROC_BROWSER_TEST_P(WebViewTest, Shim_testFindInMultipleWebViews) {
+  TestHelper("testFindInMultipleWebViews", "web_view/shim", NO_TEST_SERVER);
+}
+
 IN_PROC_BROWSER_TEST_P(WebViewTest, Shim_TestLoadDataAPI) {
   TestHelper("testLoadDataAPI", "web_view/shim", NEEDS_TEST_SERVER);
 }