Remove grab-bag includes of v8.h from several files.

src/allocation-tracker.h

 // Copyright 2013 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_ALLOCATION_TRACKER_H_
 #define V8_ALLOCATION_TRACKER_H_
 
 #include <map>
 
+#include "include/v8-profiler.h"
+#include "src/handles.h"
+#include "src/hashmap.h"
+#include "src/list.h"
+#include "src/vector.h"
+
 namespace v8 {
 namespace internal {
 
+// Forward declarations.
+class AllocationTraceTree;
+class AllocationTracker;
 class HeapObjectsMap;
-
-class AllocationTraceTree;
+class SharedFunctionInfo;
+class StringsStorage;
 
 class AllocationTraceNode {
  public:
   AllocationTraceNode(AllocationTraceTree* tree,
                       unsigned function_info_index);
   ~AllocationTraceNode();
   AllocationTraceNode* FindChild(unsigned function_info_index);
   AllocationTraceNode* FindOrAddChild(unsigned function_info_index);
   void AddAllocation(unsigned size);
 
@@ skipping 113 matching lines @@
   List<UnresolvedLocation*> unresolved_locations_;
   unsigned info_index_for_other_state_;
   AddressToTraceMap address_to_trace_;
 
   DISALLOW_COPY_AND_ASSIGN(AllocationTracker);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ALLOCATION_TRACKER_H_