LookupScope does not need to be in SkRemote.h

src/core/SkRemote.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkRemote_DEFINED
 #define SkRemote_DEFINED
 
@@ skipping 40 matching lines @@
         virtual void    save() = 0;
         virtual void restore() = 0;
 
         virtual void setMatrix(ID matrix) = 0;
 
         virtual void   clipPath(ID path, SkRegion::Op, bool aa) = 0;
         virtual void   fillPath(ID path, ID misc)               = 0;
         virtual void strokePath(ID path, ID misc, ID stroke)    = 0;
     };
 
-    struct Cache;
-
-    // TODO: document
-    class LookupScope {
-    public:
-        LookupScope(Cache* cache, Encoder* encoder) : fCache(cache), fEncoder(encoder) {}
-        ~LookupScope() { for (ID id : fToUndefine) { fEncoder->undefine(id); } }
-        void undefineWhenDone(ID id) { fToUndefine.push_back(id); }
-
-        template <typename T>
-        ID lookup(const T&);
-    private:
-        Cache*   fCache;
-        Encoder* fEncoder;
-        SkSTArray<4, ID> fToUndefine;
-    };
+    class LookupScope;
 
     // TODO: document
     struct Cache {
         virtual ~Cache() {}
 
         static Cache* CreateNeverCache();
         static Cache* CreateAlwaysCache();
 
         virtual bool lookup(const SkMatrix&, ID*, LookupScope*) = 0;
         virtual bool lookup(const Misc&,     ID*, LookupScope*) = 0;
@@ skipping 78 matching lines @@
         IDMap<Misc    , Type::kMisc  > fMisc;
         IDMap<SkPath  , Type::kPath  > fPath;
         IDMap<Stroke  , Type::kStroke> fStroke;
 
         SkCanvas* fCanvas;
     };
 
 }  // namespace SkRemote
 
 #endif//SkRemote_DEFINED