[webcrypto] Add JWK import for HMAC and AES-CBC key.

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 9b2dd3e031d1edd295e428fa610852be15336d75..d1868892d3ed4aa68a468ad09624566f18abd977 100644
--- a/content/renderer/webcrypto/webcrypto_impl.h
+++ b/content/renderer/webcrypto/webcrypto_impl.h
@@ -5,6 +5,8 @@
 #ifndef CONTENT_RENDERER_WEBCRYPTO_WEBCRYPTO_IMPL_H_
 #define CONTENT_RENDERER_WEBCRYPTO_WEBCRYPTO_IMPL_H_
 
+#include <map>
+#include <string>
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ -61,6 +63,8 @@ class CONTENT_EXPORT WebCryptoImpl
  protected:
   friend class WebCryptoImplTest;
 
+  std::map<std::string, int> jwk_algorithm_map_;
+
   void Init();
 
   bool EncryptInternal(
@@ -103,6 +107,16 @@ class CONTENT_EXPORT WebCryptoImpl
       unsigned data_size,
       bool* signature_match);
 
+  bool ImportKeyJwk(
+      const unsigned char* key_data,
+      unsigned key_data_size,
+      scoped_ptr<WebKit::WebCryptoKeyHandle>* handle,
+      WebKit::WebCryptoKeyType* type,
+      bool* extractable,
+      WebKit::WebCryptoAlgorithm* algorithm,
+      WebKit::WebCryptoKeyUsageMask* usage_mask);
+
+
  private:
   DISALLOW_COPY_AND_ASSIGN(WebCryptoImpl);
 };