NaCl: Merge three global PP_Instance mappings into one

components/nacl/renderer/json_manifest.h

Index: components/nacl/renderer/json_manifest.h
diff --git a/components/nacl/renderer/json_manifest.h b/components/nacl/renderer/json_manifest.h
index 7fdb1ab9e18d1af97f8ce2c9dddb892bd622b7d4..d18147e55d72ff779b1db5985257ff8d8cee1c04 100644
--- a/components/nacl/renderer/json_manifest.h
+++ b/components/nacl/renderer/json_manifest.h
@@ -8,9 +8,7 @@
 #include <set>
 #include <string>
 
-#include "base/memory/scoped_ptr.h"
 #include "ppapi/c/pp_array_output.h"
-#include "ppapi/c/pp_instance.h"
 #include "ppapi/c/private/ppb_nacl_private.h"
 #include "third_party/jsoncpp/source/include/json/value.h"
 
@@ -18,15 +16,6 @@ namespace nacl {
 class JsonManifest;
 class NexeLoadManager;
 
-// There is at most one JsonManifest per PP_Instance. This adds a one-to-one
-// mapping.
-void AddJsonManifest(PP_Instance instance, scoped_ptr<JsonManifest> manifest);
-
-// Returns a non-owning pointer to the JsonManifest for the given instance.
-// Returns NULL if no such JsonManifest exists.
-JsonManifest* GetJsonManifest(PP_Instance instance);
-void DeleteJsonManifest(PP_Instance instance);
-
 class JsonManifest {
  public:
   struct ErrorInfo {