Fixed NavigationItemImpl::GetDisplayTitleForURL for 'file://' URL.

ios/web/navigation/navigation_item_impl_unittest.mm

Index: ios/web/navigation/navigation_item_impl_unittest.mm
diff --git a/ios/web/navigation/navigation_item_impl_unittest.mm b/ios/web/navigation/navigation_item_impl_unittest.mm
index a2866276551c7fe011866eff90ae5a20830c395f..57ea40e05a5f75b588e46e400c6a5e47f7e5adda 100644
--- a/ios/web/navigation/navigation_item_impl_unittest.mm
+++ b/ios/web/navigation/navigation_item_impl_unittest.mm
@@ -148,5 +148,19 @@ TEST_F(NavigationItemTest, VirtualURLTest) {
   EXPECT_EQ(original_url, item_->GetURL());
 }
 
+// Tests NavigationItemImpl::GetDisplayTitleForURL method.
+TEST_F(NavigationItemTest, GetDisplayTitleForURL) {
+  base::string16 title;
+
+  title = NavigationItemImpl::GetDisplayTitleForURL(GURL("http://foo.org/"));
+  EXPECT_EQ("foo.org", base::UTF16ToUTF8(title));
+
+  title = NavigationItemImpl::GetDisplayTitleForURL(GURL("file://foo.org/"));
+  EXPECT_EQ("file://foo.org/", base::UTF16ToUTF8(title));
+
+  title = NavigationItemImpl::GetDisplayTitleForURL(GURL("file://foo/1.gz"));
+  EXPECT_EQ("1.gz", base::UTF16ToUTF8(title));
+}
+
 }  // namespace
 }  // namespace web