[webcrypto] Add decrypt() for AES-CBC.

content/renderer/webcrypto_impl.cc

Index: content/renderer/webcrypto_impl.cc
diff --git a/content/renderer/webcrypto_impl.cc b/content/renderer/webcrypto_impl.cc
index b62eb0931657cdd5905dad6c76fd80519a633afb..b9c68a11672d09386627b05556d3e5aad616dc87 100644
--- a/content/renderer/webcrypto_impl.cc
+++ b/content/renderer/webcrypto_impl.cc
@@ -29,6 +29,20 @@ void WebCryptoImpl::encrypt(
   }
 }
 
+void WebCryptoImpl::decrypt(
+    const WebKit::WebCryptoAlgorithm& algorithm,
+    const WebKit::WebCryptoKey& key,
+    const unsigned char* data,
+    unsigned data_size,
+    WebKit::WebCryptoResult result) {
+  WebKit::WebArrayBuffer buffer;
+  if (!DecryptInternal(algorithm, key, data, data_size, &buffer)) {

[jamesr, 2013/09/25 21:29:05]

no {}s for one-line bodies, right?

[eroman, 2013/09/25 22:11:59]

I am matching the style elsewhere in this file.

As I recall from the other code reviews, the braces were requested by a reviewer
:)

+    result.completeWithError();
+  } else {
+    result.completeWithBuffer(buffer);
+  }
+}
+
 void WebCryptoImpl::digest(
     const WebKit::WebCryptoAlgorithm& algorithm,
     const unsigned char* data,