Refactor WebCrypto code

content/child/webcrypto/webcrypto_impl.cc

Index: content/child/webcrypto/webcrypto_impl.cc
diff --git a/content/child/webcrypto/webcrypto_impl.cc b/content/child/webcrypto/webcrypto_impl.cc
index 43b108bb0c66c8bc66dea7341af47ea9ecae1003..03dce0d4051ddb5776ec66b15ab7f9a1eb72deff 100644
--- a/content/child/webcrypto/webcrypto_impl.cc
+++ b/content/child/webcrypto/webcrypto_impl.cc
@@ -14,9 +14,10 @@
 #include "base/thread_task_runner_handle.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/threading/worker_pool.h"
+#include "content/child/webcrypto/algorithm_dispatch.h"
 #include "content/child/webcrypto/crypto_data.h"
-#include "content/child/webcrypto/shared_crypto.h"
 #include "content/child/webcrypto/status.h"
+#include "content/child/webcrypto/structured_clone.h"
 #include "content/child/webcrypto/webcrypto_util.h"
 #include "content/child/worker_thread_task_runner.h"
 #include "third_party/WebKit/public/platform/WebCryptoKeyAlgorithm.h"
@@ -584,10 +585,6 @@ WebCryptoImpl::WebCryptoImpl() {
 WebCryptoImpl::~WebCryptoImpl() {
 }
 
-void WebCryptoImpl::EnsureInit() {
-  webcrypto::Init();
-}
-
 void WebCryptoImpl::encrypt(const blink::WebCryptoAlgorithm& algorithm,
                             const blink::WebCryptoKey& key,
                             const unsigned char* data,