Remove snapshot log parsing and option from tools.

src/log.h

 // Copyright 2012 the V8 project 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 V8_LOG_H_
 #define V8_LOG_H_
 
 #include <string>
 
 #include "src/allocation.h"
@@ skipping 71 matching lines @@
       logger->Call;                                 \
   } while (false)
 
 #define LOG_EVENTS_AND_TAGS_LIST(V)                                      \
   V(CODE_CREATION_EVENT, "code-creation")                                \
   V(CODE_DISABLE_OPT_EVENT, "code-disable-optimization")                 \
   V(CODE_MOVE_EVENT, "code-move")                                        \
   V(CODE_DELETE_EVENT, "code-delete")                                    \
   V(CODE_MOVING_GC, "code-moving-gc")                                    \
   V(SHARED_FUNC_MOVE_EVENT, "sfi-move")                                  \
-  V(SNAPSHOT_POSITION_EVENT, "snapshot-pos")                             \
   V(SNAPSHOT_CODE_NAME_EVENT, "snapshot-code-name")                      \
   V(TICK_EVENT, "tick")                                                  \
   V(REPEAT_META_EVENT, "repeat")                                         \
   V(BUILTIN_TAG, "Builtin")                                              \
   V(CALL_DEBUG_BREAK_TAG, "CallDebugBreak")                              \
   V(CALL_DEBUG_PREPARE_STEP_IN_TAG, "CallDebugPrepareStepIn")            \
   V(CALL_INITIALIZE_TAG, "CallInitialize")                               \
   V(CALL_MEGAMORPHIC_TAG, "CallMegamorphic")                             \
   V(CALL_MISS_TAG, "CallMiss")                                           \
   V(CALL_NORMAL_TAG, "CallNormal")                                       \
@@ skipping 150 matching lines @@
   // Emits a code line info start to record event
   void CodeStartLinePosInfoRecordEvent(PositionsRecorder* pos_recorder);
   // Emits a code line info finish record event.
   // It's the callee's responsibility to dispose the parameter jit_handler_data.
   void CodeEndLinePosInfoRecordEvent(AbstractCode* code,
                                      void* jit_handler_data);
 
   void SharedFunctionInfoMoveEvent(Address from, Address to);
 
   void CodeNameEvent(Address addr, int pos, const char* code_name);
-  void SnapshotPositionEvent(HeapObject* obj, int pos);
 
   // ==== Events logged by --log-gc. ====
   // Heap sampling events: start, end, and individual types.
   void HeapSampleBeginEvent(const char* space, const char* kind);
   void HeapSampleEndEvent(const char* space, const char* kind);
   void HeapSampleItemEvent(const char* type, int number, int bytes);
   void HeapSampleJSConstructorEvent(const char* constructor,
                                     int number, int bytes);
   void HeapSampleJSRetainersEvent(const char* constructor,
                                          const char* event);
@@ skipping 254 matching lines @@
 
   NameBuffer* name_buffer_;
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 
 #endif  // V8_LOG_H_