Fix client-side phishing detection test flakiness and ChromeOS failure.

content/renderer/renderer_webkitplatformsupport_impl.h

 // 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.
 
 #ifndef CONTENT_RENDERER_RENDERER_WEBKITPLATFORMSUPPORT_IMPL_H_
 #define CONTENT_RENDERER_RENDERER_WEBKITPLATFORMSUPPORT_IMPL_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 74 matching lines @@
   virtual WebKit::WebString userAgent(const WebKit::WebURL& url) OVERRIDE;
   virtual void GetPlugins(bool refresh,
                           std::vector<webkit::WebPluginInfo>* plugins) OVERRIDE;
   virtual WebKit::WebPeerConnectionHandler* createPeerConnectionHandler(
       WebKit::WebPeerConnectionHandlerClient* client) OVERRIDE;
   virtual WebKit::WebPeerConnection00Handler* createPeerConnection00Handler(
       WebKit::WebPeerConnection00HandlerClient* client) OVERRIDE;
   virtual WebKit::WebMediaStreamCenter* createMediaStreamCenter(
       WebKit::WebMediaStreamCenterClient* client) OVERRIDE;
 
+  // Disables the WebSandboxSupport implementation for testing.
+  // Tests that do not set up a full sandbox environment should call
+  // SetSandboxEnabledForTesting(false) _before_ creating any instances
+  // of this class, to ensure that we don't attempt to use sandbox-related
+  // file descriptors or other resources.
+  //
+  // Returns the previous |enable| value.
+  static bool SetSandboxEnabledForTesting(bool enable);
+
  protected:
   virtual GpuChannelHostFactory* GetGpuChannelHostFactory() OVERRIDE;
 
  private:
   bool CheckPreparsedJsCachingEnabled() const;
 
   scoped_ptr<RendererClipboardClient> clipboard_client_;
   scoped_ptr<webkit_glue::WebClipboardImpl> clipboard_;
 
   class FileUtilities;
@@ skipping 18 matching lines @@
   scoped_ptr<WebKit::WebIDBFactory> web_idb_factory_;
 
   scoped_ptr<WebFileSystemImpl> web_file_system_;
 
   scoped_ptr<WebKit::WebBlobRegistry> blob_registry_;
 
   scoped_ptr<content::GamepadSharedMemoryReader> gamepad_shared_memory_reader_;
 };
 
 #endif  // CONTENT_RENDERER_RENDERER_WEBKITPLATFORMSUPPORT_IMPL_H_