Rename ASSERT* to DCHECK*.

src/snapshot-source-sink.h

Index: src/snapshot-source-sink.h
diff --git a/src/snapshot-source-sink.h b/src/snapshot-source-sink.h
index f98b5d0a4e0283ab1d717ecde0ac4227c6bf66f2..bda6455e8b9b7d531e380e14b9cb6755db4b27d6 100644
--- a/src/snapshot-source-sink.h
+++ b/src/snapshot-source-sink.h
@@ -25,7 +25,7 @@ class SnapshotByteSource V8_FINAL {
   bool HasMore() { return position_ < length_; }
 
   int Get() {
-    ASSERT(position_ < length_);
+    DCHECK(position_ < length_);
     return data_[position_++];
   }
 
@@ -73,7 +73,7 @@ class SnapshotByteSink {
   virtual ~SnapshotByteSink() { }
   virtual void Put(byte b, const char* description) = 0;
   virtual void PutSection(int b, const char* description) {
-    ASSERT_LE(b, kMaxUInt8);
+    DCHECK_LE(b, kMaxUInt8);
     Put(static_cast<byte>(b), description);
   }
   void PutInt(uintptr_t integer, const char* description);