Add chromium side implementation of WebKit::WebCrypto.

content/renderer/renderer_webkitplatformsupport_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/renderer_webkitplatformsupport_impl.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/lazy_instance.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 22 matching lines @@
 #include "content/renderer/hyphenator/hyphenator.h"
 #include "content/renderer/media/audio_decoder.h"
 #include "content/renderer/media/crypto/key_systems.h"
 #include "content/renderer/media/media_stream_dependency_factory.h"
 #include "content/renderer/media/renderer_webaudiodevice_impl.h"
 #include "content/renderer/media/renderer_webmidiaccessor_impl.h"
 #include "content/renderer/media/webcontentdecryptionmodule_impl.h"
 #include "content/renderer/render_thread_impl.h"
 #include "content/renderer/renderer_clipboard_client.h"
 #include "content/renderer/webclipboard_impl.h"
+#include "content/renderer/webcrypto_impl.h"
 #include "content/renderer/websharedworkerrepository_impl.h"
 #include "gpu/config/gpu_info.h"
 #include "ipc/ipc_sync_message_filter.h"
 #include "media/audio/audio_output_device.h"
 #include "media/base/audio_hardware_config.h"
 #include "media/filters/stream_parser_factory.h"
 #include "net/base/mime_util.h"
 #include "net/base/net_util.h"
 #include "third_party/WebKit/public/platform/WebBlobRegistry.h"
 #include "third_party/WebKit/public/platform/WebDeviceMotionListener.h"
@@ skipping 1029 matching lines @@
                    g_test_device_motion_data.Get()));
   }
 }
 
 // static
 void RendererWebKitPlatformSupportImpl::SetMockDeviceMotionDataForTesting(
     const WebKit::WebDeviceMotionData& data) {
   g_test_device_motion_data.Get() = data;
 }
 
+//------------------------------------------------------------------------------
+
+WebKit::WebCrypto* RendererWebKitPlatformSupportImpl::crypto() {
+  if (!web_crypto_)
+    web_crypto_.reset(new WebCryptoImpl());
+  return web_crypto_.get();
+
+}
+
 }  // namespace content