Add content implementation of digestSynchcronous.

content/renderer/webcrypto/webcrypto_impl.h

Index: content/renderer/webcrypto/webcrypto_impl.h
diff --git a/content/renderer/webcrypto/webcrypto_impl.h b/content/renderer/webcrypto/webcrypto_impl.h
index fa4a2f4083d228332b6bf3f64dc814a25e78d65b..06c235c4ef9e448a64639a7db6646022f4b54f0f 100644
--- a/content/renderer/webcrypto/webcrypto_impl.h
+++ b/content/renderer/webcrypto/webcrypto_impl.h
@@ -8,6 +8,7 @@
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "third_party/WebKit/public/platform/WebCrypto.h"
+#include "third_party/WebKit/public/platform/WebCryptoAlgorithm.h"
 
 namespace content {
 
@@ -60,6 +61,10 @@ class WebCryptoImpl : public blink::WebCrypto {
                                const unsigned char* data,
                                unsigned int data_size,
                                blink::WebCryptoResult result);
+  virtual bool digestSynchronous(const blink::WebCryptoAlgorithmId algorithm,
+                                 const unsigned char* data,
+                                 unsigned int data_size,
+                                 blink::WebArrayBuffer& result);

[eroman, 2014/02/21 23:11:20]

Have you tested if this works? Try adding an OVERRIDE as a test to make sure the
signature is right. I seem to remember we settled on WebVector rather than
WebArrayBuffer.

Other than that, L G T M.

[jww, 2014/02/21 23:23:34]

In the end, you approved the version that was WebArrayBuffer and that's what was
committed. I've definitely confirmed locally that this works.

 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebCryptoImpl);