Replace ASSERT, ENABLE(ASSERT), and ASSERT_NOT_REACHED in wtf

third_party/WebKit/Source/wtf/text/UTF8.cpp

Index: third_party/WebKit/Source/wtf/text/UTF8.cpp
diff --git a/third_party/WebKit/Source/wtf/text/UTF8.cpp b/third_party/WebKit/Source/wtf/text/UTF8.cpp
index 3fd09afd1e2f3bb68065a79261bad2cedf433bc3..cdd89a2edfb608dccd685177eb3066f4046d4d25 100644
--- a/third_party/WebKit/Source/wtf/text/UTF8.cpp
+++ b/third_party/WebKit/Source/wtf/text/UTF8.cpp
@@ -385,7 +385,7 @@ unsigned calculateStringHashAndLengthFromUTF8MaskingTop8Bits(
       return 0;
 
     UChar32 character = readUTF8Sequence(data, utf8SequenceLength);
-    ASSERT(!isASCII(character));
+    DCHECK(!isASCII(character));
 
     if (U_IS_BMP(character)) {
       // UTF-16 surrogate values are illegal in UTF-32
@@ -427,7 +427,7 @@ ALWAYS_INLINE bool equalWithUTF8Internal(const CharType* a,
       return 0;
 
     UChar32 character = readUTF8Sequence(b, utf8SequenceLength);
-    ASSERT(!isASCII(character));
+    DCHECK(!isASCII(character));
 
     if (U_IS_BMP(character)) {
       // UTF-16 surrogate values are illegal in UTF-32