Remove redundant friend class statements

include/qpdf/QPDF.hh

@@ -886,7 +886,6 @@ class QPDF
             qpdf->resolve(og);
         }
     };
-    friend class Resolver;
 
     // StreamCopier class is restricted to QPDFObjectHandle so it can
     // copy stream data.
@@ -904,7 +903,6 @@ class QPDF
             qpdf->copyStreamData(dest, src);
         }
     };
-    friend class Resolver;
 
     // The ParseGuard class allows QPDFObjectHandle to detect
     // re-entrant parsing.
@@ -928,7 +926,6 @@ class QPDF
         }
         QPDF* qpdf;
     };
-    friend class ParseGuard;
 
     // Pipe class is restricted to QPDF_Stream
     class Pipe
@@ -957,7 +954,6 @@ class QPDF
                 will_retry);
         }
     };
-    friend class Pipe;
 
     // For testing only -- do not add to DLL
     static bool test_json_validators();
@@ -1106,7 +1102,6 @@ class QPDF
         QPDF* qpdf;
         std::set<QPDFObjGen>::const_iterator iter;
     };
-    friend class ResolveRecorder;
 
     class JSONReactor: public JSON::Reactor
     {
@@ -1173,7 +1168,6 @@ class QPDF
         std::vector<QPDFObjectHandle> object_stack;
         std::set<QPDFObjGen> reserved;
     };
-    friend class JSONReactor;
 
     void parse(char const* password);
     void inParse(bool);

include/qpdf/QPDFJob.hh

@@ -382,7 +382,6 @@ class QPDFJob
         }
         QPDFJob& o;
     };
-    friend class Config;
 
     // Return a top-level configuration item. See CONFIGURATION above
     // for details. If an invalid configuration is created (such as

include/qpdf/QPDFObjectHandle.hh

@@ -1504,7 +1504,6 @@ class QPDFObjectHandle
             return QPDFObjectHandle(obj);
         }
     };
-    friend class Factory;
 
     // Accessor for raw underlying object -- only QPDF is allowed to
     // call this.
@@ -1533,7 +1532,6 @@ class QPDFObjectHandle
             return oh.asStream();
         }
     };
-    friend class ObjAccessor;
 
     // Provide access to specific classes for recursive
     // disconnected().
@@ -1550,7 +1548,6 @@ class QPDFObjectHandle
             o.disconnect();
         }
     };
-    friend class Resetter;
 
     // Convenience routine: Throws if the assumption is violated. Your
     // code will be better if you call one of the isType methods and

include/qpdf/QPDFOutlineDocumentHelper.hh

@@ -76,7 +76,6 @@ class QPDFOutlineDocumentHelper: public QPDFDocumentHelper
             return dh.checkSeen(og);
         }
     };
-    friend class Accessor;
 
   private:
     bool checkSeen(QPDFObjGen const& og);

include/qpdf/QPDFOutlineObjectHelper.hh

@@ -93,7 +93,6 @@ class QPDFOutlineObjectHelper: public QPDFObjectHelper
             return QPDFOutlineObjectHelper(oh, dh, depth);
         }
     };
-    friend class Accessor;
 
   private:
     QPDF_DLL

include/qpdf/QPDFWriter.hh

@@ -550,7 +550,6 @@ class QPDFWriter
         std::shared_ptr<Buffer>* bp;
         std::string stack_id;
     };
-    friend class PipelinePopper;
 
     unsigned int bytesNeeded(long long n);
     void writeBinary(unsigned long long val, unsigned int bytes);