Allow whitelisted content scripts to be injected in WebViews.

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 3b3d7bf75b35ecc43db3ebd478f036f6dd37e195..331cc1e2e74b9e3b2053aa3d6bcaf774a8e7f65a 100644
--- a/chrome/browser/apps/guest_view/web_view_browsertest.cc
+++ b/chrome/browser/apps/guest_view/web_view_browsertest.cc
@@ -2212,17 +2212,17 @@ IN_PROC_BROWSER_TEST_F(WebViewTest, ChromeVoxInjection) {
   EXPECT_FALSE(
       chromeos::AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
 
+  chromeos::SpeechMonitor monitor;
+  chromeos::AccessibilityManager::Get()->EnableSpokenFeedback(
+      true, ui::A11Y_NOTIFICATION_NONE);
+  EXPECT_TRUE(monitor.SkipChromeVoxEnabledMessage());
+
   ASSERT_TRUE(StartEmbeddedTestServer());
   content::WebContents* guest_web_contents = LoadGuest(
       "/extensions/platform_apps/web_view/chromevox_injection/guest.html",
       "web_view/chromevox_injection");
   ASSERT_TRUE(guest_web_contents);
 
-  chromeos::SpeechMonitor monitor;
-  chromeos::AccessibilityManager::Get()->EnableSpokenFeedback(
-      true, ui::A11Y_NOTIFICATION_NONE);
-  EXPECT_TRUE(monitor.SkipChromeVoxEnabledMessage());
-
   EXPECT_EQ("chrome vox test title", monitor.GetNextUtterance());
 }
 #endif