Don't allow sending data URLs to WebUI, unless in a ChromeOS BalloonHost.

content/browser/site_instance_impl_unittest.cc

 // Copyright (c) 2012 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 "base/compiler_specific.h"
 #include "base/stl_util.h"
 #include "base/string16.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/browsing_instance.h"
 #include "content/browser/child_process_security_policy_impl.h"
@@ skipping 43 matching lines @@
     return WebUI::kNoWebUI;
   }
   virtual bool UseWebUIForURL(BrowserContext* browser_context,
                               const GURL& url) const OVERRIDE {
     return content::GetContentClient()->HasWebUIScheme(url);
   }
   virtual bool UseWebUIBindingsForURL(BrowserContext* browser_context,
                                       const GURL& url) const OVERRIDE {
     return content::GetContentClient()->HasWebUIScheme(url);
   }
-  virtual bool IsURLAcceptableForWebUI(BrowserContext* browser_context,
-      const GURL& url) const OVERRIDE {
+  virtual bool IsURLAcceptableForWebUI(
+      BrowserContext* browser_context,
+      const GURL& url,
+      bool data_urls_allowed) const OVERRIDE {
     return false;
   }
 };
 
 class SiteInstanceTestClient : public TestContentClient {
  public:
   SiteInstanceTestClient() {
   }
 
   virtual bool HasWebUIScheme(const GURL& url) const OVERRIDE {
@@ skipping 538 matching lines @@
   host.reset(instance->GetProcess());
   EXPECT_TRUE(host.get() != NULL);
   EXPECT_TRUE(instance->HasProcess());
 
   EXPECT_FALSE(instance->HasWrongProcessForURL(GURL("http://evernote.com")));
   EXPECT_FALSE(instance->HasWrongProcessForURL(
       GURL("javascript:alert(document.location.href);")));
 
   EXPECT_TRUE(instance->HasWrongProcessForURL(GURL("chrome://settings")));
 }