[refactor] Remove WebArrayBuffer from unittests, since now using std::vector.

content/child/webcrypto/crypto_data.cc

Index: content/child/webcrypto/crypto_data.cc
diff --git a/content/child/webcrypto/crypto_data.cc b/content/child/webcrypto/crypto_data.cc
index 47de0bed91818ac0fe805b21f80cbb8f05b8147f..29736418ae5b1de0716b530b631da8604453237e 100644
--- a/content/child/webcrypto/crypto_data.cc
+++ b/content/child/webcrypto/crypto_data.cc
@@ -4,8 +4,6 @@
 
 #include "content/child/webcrypto/crypto_data.h"
 
-#include "third_party/WebKit/public/platform/WebArrayBuffer.h"
-
 namespace content {
 
 namespace webcrypto {
@@ -23,10 +21,6 @@ CryptoData::CryptoData(const std::string& bytes)
                           : NULL),
       byte_length_(bytes.size()) {}
 
-CryptoData::CryptoData(const blink::WebArrayBuffer& buffer)
-    : bytes_(reinterpret_cast<const unsigned char*>(buffer.data())),
-      byte_length_(buffer.byteLength()) {}
-
 CryptoData::CryptoData(const blink::WebVector<unsigned char>& bytes)
     : bytes_(bytes.data()), byte_length_(bytes.size()) {}