Add media file validation to utility process

chrome/utility/chrome_content_utility_client.h

Index: chrome/utility/chrome_content_utility_client.h
diff --git a/chrome/utility/chrome_content_utility_client.h b/chrome/utility/chrome_content_utility_client.h
index 419c1557a40da8644ef6cfd84750b4b536d4af4d..21e13506deff7fef7ad0b756f18acf7d24859ea3 100644
--- a/chrome/utility/chrome_content_utility_client.h
+++ b/chrome/utility/chrome_content_utility_client.h
@@ -38,7 +38,7 @@ class ChromeContentUtilityClient : public content::ContentUtilityClient {
   virtual void UtilityThreadStarted() OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
-  static void PreSandboxStartup();
+  static void PreSandboxStartup(const base::FilePath& media_path);
 
  private:
   // IPC message handlers.
@@ -82,6 +82,8 @@ class ChromeContentUtilityClient : public content::ContentUtilityClient {
   void OnStartupPing();
   void OnAnalyzeZipFileForDownloadProtection(
       IPC::PlatformFileForTransit zip_file);
+  void OnCheckMediaFile(int64 milliseconds_of_decoding,
+                        IPC::PlatformFileForTransit media_file);
 
 #if defined(OS_WIN)
   void OnParseITunesPrefXml(const std::string& itunes_xml_data);