WebCrypto: Add crypto.subtle.verify() to the platform interfaces.

Source/core/platform/chromium/support/WebCrypto.cpp

Index: Source/core/platform/chromium/support/WebCrypto.cpp
diff --git a/Source/core/platform/chromium/support/WebCrypto.cpp b/Source/core/platform/chromium/support/WebCrypto.cpp
index 73e8a29abb3b72207ab05fdf1fbff87c4d5f7edd..9f63634011e01d67f48d1fb2dfc9414073c240b6 100644
--- a/Source/core/platform/chromium/support/WebCrypto.cpp
+++ b/Source/core/platform/chromium/support/WebCrypto.cpp
@@ -59,6 +59,12 @@ void WebCryptoOperationResult::completeWithArrayBuffer(const WebArrayBuffer& buf
     reset();
 }
 
+void WebCryptoOperationResult::completeWithBoolean(bool b)
+{
+    m_impl->completeWithBoolean(b);
+    reset();
+}
+
 void WebCryptoOperationResult::reset()
 {
     m_impl.reset();