Get rid of WTF::SHA1.

Source/core/frame/csp/CSPSourceList.cpp

Index: Source/core/frame/csp/CSPSourceList.cpp
diff --git a/Source/core/frame/csp/CSPSourceList.cpp b/Source/core/frame/csp/CSPSourceList.cpp
index a17c5bb73cf9fdd8855017d62f68db8d6b09fdd0..988929e31e6ec533d1168e8ee8dc2ef05fec7dad 100644
--- a/Source/core/frame/csp/CSPSourceList.cpp
+++ b/Source/core/frame/csp/CSPSourceList.cpp
@@ -7,42 +7,14 @@
 
 #include "core/frame/csp/CSPSource.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
+#include "platform/CryptoUtilities.h"
 #include "platform/ParsingUtilities.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "wtf/HashSet.h"
-#include "wtf/StringHasher.h"
 #include "wtf/text/Base64.h"
 #include "wtf/text/WTFString.h"
 
-namespace WTF {
-
-struct DigestValueHash {
-    static unsigned hash(const WebCore::DigestValue& v)
-    {
-        return StringHasher::computeHash(v.data(), v.size());
-    }
-    static bool equal(const WebCore::DigestValue& a, const WebCore::DigestValue& b)
-    {
-        return a == b;
-    };
-    static const bool safeToCompareToEmptyOrDeleted = true;
-};
-template <>
-struct DefaultHash<WebCore::DigestValue> {
-    typedef DigestValueHash Hash;
-};
-
-template <>
-struct DefaultHash<WebCore::ContentSecurityPolicyHashAlgorithm> {
-    typedef IntHash<WebCore::ContentSecurityPolicyHashAlgorithm> Hash;
-};
-template <>
-struct HashTraits<WebCore::ContentSecurityPolicyHashAlgorithm> : UnsignedWithZeroKeyHashTraits<WebCore::ContentSecurityPolicyHashAlgorithm> {
-};
-
-} // namespace WTF
-
 namespace WebCore {
 
 static bool isSourceListNone(const UChar* begin, const UChar* end)
@@ -197,7 +169,7 @@ bool CSPSourceList::parseSource(const UChar* begin, const UChar* end, String& sc
             return true;
         }
 
-        DigestValue hash;
+        CryptoUtil::DigestValue hash;
         ContentSecurityPolicyHashAlgorithm algorithm = ContentSecurityPolicyHashAlgorithmNone;
         if (!parseHash(begin, end, hash, algorithm))
             return false;
@@ -309,7 +281,7 @@ bool CSPSourceList::parseNonce(const UChar* begin, const UChar* end, String& non
 // hash-algorithm    = "sha1" / "sha256" / "sha384" / "sha512"
 // hash-value        = 1*( ALPHA / DIGIT / "+" / "/" / "=" )
 //
-bool CSPSourceList::parseHash(const UChar* begin, const UChar* end, DigestValue& hash, ContentSecurityPolicyHashAlgorithm& hashAlgorithm)
+bool CSPSourceList::parseHash(const UChar* begin, const UChar* end, CryptoUtil::DigestValue& hash, ContentSecurityPolicyHashAlgorithm& hashAlgorithm)
 {
     // Any additions or subtractions from this struct should also modify the
     // respective entries in the kAlgorithmMap array in checkDigest().
@@ -358,7 +330,7 @@ bool CSPSourceList::parseHash(const UChar* begin, const UChar* end, DigestValue&
 
     Vector<char> hashVector;
     base64Decode(hashBegin, position - hashBegin, hashVector);
-    if (hashVector.size() > kMaxDigestSize)
+    if (hashVector.size() > CryptoUtil::kMaxDigestSize)
         return false;
     hash.append(reinterpret_cast<uint8_t*>(hashVector.data()), hashVector.size());
     return true;
@@ -506,7 +478,7 @@ void CSPSourceList::addSourceNonce(const String& nonce)
     m_nonces.add(nonce);
 }
 
-void CSPSourceList::addSourceHash(const ContentSecurityPolicyHashAlgorithm& algorithm, const DigestValue& hash)
+void CSPSourceList::addSourceHash(const ContentSecurityPolicyHashAlgorithm& algorithm, const CryptoUtil::DigestValue& hash)
 {
     m_hashes.add(CSPHashValue(algorithm, hash));
     m_hashAlgorithmsUsed |= algorithm;