Move sandbox_policy to content.

content/browser/content_browser_client.h

Index: content/browser/content_browser_client.h
===================================================================
--- content/browser/content_browser_client.h	(revision 87093)
+++ content/browser/content_browser_client.h	(working copy)
@@ -24,10 +24,6 @@
 class CookieOptions;
 }
 
-namespace sandbox {
-class TargetPolicy;
-}
-
 namespace content {
 
 class ResourceContext;
@@ -109,12 +105,6 @@
   // Can return an optional fd for crash handling, otherwise returns -1.
   virtual int GetCrashSignalFD(const std::string& process_type);
 #endif
-
-#if defined(OS_WIN)
-  // Allows the embedder to sandbox a plugin, and apply a custom policy.
-  virtual bool SandboxPlugin(CommandLine* command_line,
-                             sandbox::TargetPolicy* policy);
-#endif
 };
 
 }  // namespace content