Restructure the ipc_fuzzer directory.

tools/ipc_fuzzer/mutate/fuzzer.h

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_IPC_FUZZER_MUTATE_FUZZER_H_
-#define TOOLS_IPC_FUZZER_MUTATE_FUZZER_H_
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/strings/string_util.h"
-#include "ipc/ipc_message.h"
-
-namespace ipc_fuzzer {
-
-// Interface implemented by those who generate basic types.  The types all
-// correspond to the types which a pickle from base/pickle.h can pickle,
-// plus the floating point types.
-class Fuzzer {
- public:
-  // Functions for various data types.
-  virtual void FuzzBool(bool* value) = 0;
-  virtual void FuzzInt(int* value) = 0;
-  virtual void FuzzLong(long* value) = 0;
-  virtual void FuzzSize(size_t* value) = 0;
-  virtual void FuzzUChar(unsigned char* value) = 0;
-  virtual void FuzzWChar(wchar_t* value) = 0;
-  virtual void FuzzUInt16(uint16* value) = 0;
-  virtual void FuzzUInt32(uint32* value) = 0;
-  virtual void FuzzInt64(int64* value) = 0;
-  virtual void FuzzUInt64(uint64* value) = 0;
-  virtual void FuzzFloat(float* value) = 0;
-  virtual void FuzzDouble(double *value) = 0;
-  virtual void FuzzString(std::string* value) = 0;
-  virtual void FuzzString16(base::string16* value) = 0;
-  virtual void FuzzData(char* data, int length) = 0;
-  virtual void FuzzBytes(void* data, int data_len) = 0;
-
-  // Used to determine if a completely new value should be generated for
-  // certain types instead of attempting to modify the existing one.
-  virtual bool ShouldGenerate();
-};
-
-class NoOpFuzzer : public Fuzzer {
- public:
-  NoOpFuzzer() {}
-  virtual ~NoOpFuzzer() {}
-
-  void FuzzBool(bool* value) override {}
-  void FuzzInt(int* value) override {}
-  void FuzzLong(long* value) override {}
-  void FuzzSize(size_t* value) override {}
-  void FuzzUChar(unsigned char* value) override {}
-  void FuzzWChar(wchar_t* value) override {}
-  void FuzzUInt16(uint16* value) override {}
-  void FuzzUInt32(uint32* value) override {}
-  void FuzzInt64(int64* value) override {}
-  void FuzzUInt64(uint64* value) override {}
-  void FuzzFloat(float* value) override {}
-  void FuzzDouble(double* value) override {}
-  void FuzzString(std::string* value) override {}
-  void FuzzString16(base::string16* value) override {}
-  void FuzzData(char* data, int length) override {}
-  void FuzzBytes(void* data, int data_len) override {}
-};
-
-typedef IPC::Message* (*FuzzerFunction)(IPC::Message*, Fuzzer*);
-
-// Used for mutating messages. Once populated, the map associates a message ID
-// with a FuzzerFunction used for mutation of that message type.
-typedef base::hash_map<uint32, FuzzerFunction> FuzzerFunctionMap;
-void PopulateFuzzerFunctionMap(FuzzerFunctionMap* map);
-
-// Used for generating new messages. Once populated, the vector contains
-// FuzzerFunctions for all message types that we know how to generate.
-typedef std::vector<FuzzerFunction> FuzzerFunctionVector;
-void PopulateFuzzerFunctionVector(FuzzerFunctionVector* function_vector);
-
-// Since IPC::Message can be serialized, we also track a global function vector
-// to handle generation of new messages while fuzzing.
-extern FuzzerFunctionVector g_function_vector;
-
-}  // namespace ipc_fuzzer
-
-#endif  // TOOLS_IPC_FUZZER_MUTATE_FUZZER_H_