Replace all occurrences of RELEASE_ASSERT in wtf with CHECK.

third_party/WebKit/Source/wtf/text/TextCodecUTF16.cpp

Index: third_party/WebKit/Source/wtf/text/TextCodecUTF16.cpp
diff --git a/third_party/WebKit/Source/wtf/text/TextCodecUTF16.cpp b/third_party/WebKit/Source/wtf/text/TextCodecUTF16.cpp
index 6fc1f15a2df3867d4294cf5e13e0b588cf4c266e..7e63eb05ef93b034a4a607b994c18b0201445d67 100644
--- a/third_party/WebKit/Source/wtf/text/TextCodecUTF16.cpp
+++ b/third_party/WebKit/Source/wtf/text/TextCodecUTF16.cpp
@@ -166,7 +166,7 @@ CString TextCodecUTF16::encode(const UChar* characters, size_t length, Unencodab
 CString TextCodecUTF16::encode(const LChar* characters, size_t length, UnencodableHandling)
 {
     // In the LChar case, we do actually need to perform this check in release.  :)
-    RELEASE_ASSERT(length <= numeric_limits<size_t>::max() / 2);
+    CHECK_LE(length, numeric_limits<size_t>::max() / 2);
 
     char* bytes;
     CString result = CString::newUninitialized(length * 2, bytes);