WebCrypto: [refactor] Use "unsigned" rather than "size_t" for buffer sizes.

Source/testing/runner/MockWebCrypto.h

Index: Source/testing/runner/MockWebCrypto.h
diff --git a/Source/testing/runner/MockWebCrypto.h b/Source/testing/runner/MockWebCrypto.h
index e2b8c078b4dca8883e4ae83cbe69a187b1176a35..d1bdb22877d53bde4b7a0d7df69a601ec76c2c18 100644
--- a/Source/testing/runner/MockWebCrypto.h
+++ b/Source/testing/runner/MockWebCrypto.h
@@ -40,13 +40,13 @@ class MockWebCrypto : public WebKit::WebCrypto {
 public:
     static MockWebCrypto* get();
 
-    virtual void encrypt(const WebKit::WebCryptoAlgorithm&, const WebKit::WebCryptoKey&, const unsigned char*, size_t, WebKit::WebCryptoResult) OVERRIDE;
-    virtual void decrypt(const WebKit::WebCryptoAlgorithm&, const WebKit::WebCryptoKey&, const unsigned char*, size_t, WebKit::WebCryptoResult) OVERRIDE;
-    virtual void sign(const WebKit::WebCryptoAlgorithm&, const WebKit::WebCryptoKey&, const unsigned char*, size_t, WebKit::WebCryptoResult) OVERRIDE;
-    virtual void verifySignature(const WebKit::WebCryptoAlgorithm&, const WebKit::WebCryptoKey&, const unsigned char*, size_t, const unsigned char*, size_t, WebKit::WebCryptoResult) OVERRIDE;
-    virtual void digest(const WebKit::WebCryptoAlgorithm&, const unsigned char*, size_t, WebKit::WebCryptoResult) OVERRIDE;
+    virtual void encrypt(const WebKit::WebCryptoAlgorithm&, const WebKit::WebCryptoKey&, const unsigned char*, unsigned, WebKit::WebCryptoResult) OVERRIDE;
+    virtual void decrypt(const WebKit::WebCryptoAlgorithm&, const WebKit::WebCryptoKey&, const unsigned char*, unsigned, WebKit::WebCryptoResult) OVERRIDE;
+    virtual void sign(const WebKit::WebCryptoAlgorithm&, const WebKit::WebCryptoKey&, const unsigned char*, unsigned, WebKit::WebCryptoResult) OVERRIDE;
+    virtual void verifySignature(const WebKit::WebCryptoAlgorithm&, const WebKit::WebCryptoKey&, const unsigned char*, unsigned, const unsigned char*, unsigned, WebKit::WebCryptoResult) OVERRIDE;
+    virtual void digest(const WebKit::WebCryptoAlgorithm&, const unsigned char*, unsigned, WebKit::WebCryptoResult) OVERRIDE;
     virtual void generateKey(const WebKit::WebCryptoAlgorithm&, bool extractable, WebKit::WebCryptoKeyUsageMask, WebKit::WebCryptoResult) OVERRIDE;
-    virtual void importKey(WebKit::WebCryptoKeyFormat, const unsigned char* keyData, size_t keyDataSize, const WebKit::WebCryptoAlgorithm&, bool extractable, WebKit::WebCryptoKeyUsageMask, WebKit::WebCryptoResult) OVERRIDE;
+    virtual void importKey(WebKit::WebCryptoKeyFormat, const unsigned char* keyData, unsigned keyDataSize, const WebKit::WebCryptoAlgorithm&, bool extractable, WebKit::WebCryptoKeyUsageMask, WebKit::WebCryptoResult) OVERRIDE;
     virtual void exportKey(WebKit::WebCryptoKeyFormat, const WebKit::WebCryptoKey&, WebKit::WebCryptoResult) OVERRIDE;
 };