Modifies how Arc's throttle handles redirections

chrome/browser/chromeos/arc/arc_navigation_throttle_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/arc/arc_navigation_throttle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 namespace arc {
 
@@ skipping 18 matching lines @@
   EXPECT_FALSE(ArcNavigationThrottle::ShouldOverrideUrlLoadingForTesting(
       GURL("http://a.google.com/"), GURL()));
   EXPECT_FALSE(ArcNavigationThrottle::ShouldOverrideUrlLoadingForTesting(
       GURL(), GURL()));
 
   // A navigation not within the same domain can be overridden.
   EXPECT_TRUE(ArcNavigationThrottle::ShouldOverrideUrlLoadingForTesting(
       GURL("http://www.google.com"), GURL("http://www.not-google.com/")));
   EXPECT_TRUE(ArcNavigationThrottle::ShouldOverrideUrlLoadingForTesting(
       GURL("http://www.not-google.com"), GURL("http://www.google.com/")));
+
+  // A navigation with neither an http nor https scheme cannot be overriden.
+  EXPECT_FALSE(ArcNavigationThrottle::ShouldOverrideUrlLoadingForTesting(
+      GURL("chrome-extension://fake_document"), GURL("http://www.a.com")));
+  EXPECT_FALSE(ArcNavigationThrottle::ShouldOverrideUrlLoadingForTesting(
+      GURL("http://www.a.com"), GURL("chrome-extension://fake_document")));
+  EXPECT_FALSE(ArcNavigationThrottle::ShouldOverrideUrlLoadingForTesting(
+      GURL("chrome-extension://fake_document"), GURL("https://www.a.com")));
+  EXPECT_FALSE(ArcNavigationThrottle::ShouldOverrideUrlLoadingForTesting(
+      GURL("https://www.a.com"), GURL("chrome-extension://fake_document")));
+  EXPECT_FALSE(ArcNavigationThrottle::ShouldOverrideUrlLoadingForTesting(
+      GURL("chrome-extension://fake_a"), GURL("chrome-extension://fake_b")));
 }
 
 }  // namespace arc