Correctly name header macros for src/snapshot/*.h.

R=mvstanton@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1091983002

Cr-Commit-Position: refs/heads/master@{#27933}

src/snapshot/natives.h

@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef V8_NATIVES_H_
-#define V8_NATIVES_H_
+#ifndef V8_SNAPSHOT_NATIVES_H_
+#define V8_SNAPSHOT_NATIVES_H_
 
 #include "src/vector.h"
 
@@ -46,4 +46,4 @@ void DisposeNatives();
 
 } }  // namespace v8::internal
 
-#endif  // V8_NATIVES_H_
+#endif  // V8_SNAPSHOT_NATIVES_H_

src/snapshot/serialize.h

@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef V8_SERIALIZE_H_
-#define V8_SERIALIZE_H_
+#ifndef V8_SNAPSHOT_SERIALIZE_H_
+#define V8_SNAPSHOT_SERIALIZE_H_
 
 #include "src/hashmap.h"
 #include "src/heap-profiler.h"
@@ -1001,4 +1001,4 @@ class SerializedCodeData : public SerializedData {
 };
 } }  // namespace v8::internal
 
-#endif  // V8_SERIALIZE_H_
+#endif  // V8_SNAPSHOT_SERIALIZE_H_

src/snapshot/snapshot-source-sink.h

@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef V8_SNAPSHOT_SOURCE_SINK_H_
-#define V8_SNAPSHOT_SOURCE_SINK_H_
+#ifndef V8_SNAPSHOT_SNAPSHOT_SOURCE_SINK_H_
+#define V8_SNAPSHOT_SNAPSHOT_SOURCE_SINK_H_
 
 #include "src/base/logging.h"
 #include "src/utils.h"
@@ -104,4 +104,4 @@ class SnapshotByteSink {
 }  // namespace v8::internal
 }  // namespace v8
 
-#endif  // V8_SNAPSHOT_SOURCE_SINK_H_
+#endif  // V8_SNAPSHOT_SNAPSHOT_SOURCE_SINK_H_

src/snapshot/snapshot.h

@@ -5,8 +5,8 @@
 #include "src/isolate.h"
 #include "src/snapshot/serialize.h"
 
-#ifndef V8_SNAPSHOT_H_
-#define V8_SNAPSHOT_H_
+#ifndef V8_SNAPSHOT_SNAPSHOT_H_
+#define V8_SNAPSHOT_SNAPSHOT_H_
 
 namespace v8 {
 namespace internal {
@@ -90,4 +90,4 @@ void SetSnapshotFromFile(StartupData* snapshot_blob);
 
 } }  // namespace v8::internal
 
-#endif  // V8_SNAPSHOT_H_
+#endif  // V8_SNAPSHOT_SNAPSHOT_H_