[PresentationAPI] Implements send API for Blob data from WebPresentationClient

content/renderer/presentation/presentation_dispatcher.h

Index: content/renderer/presentation/presentation_dispatcher.h
diff --git a/content/renderer/presentation/presentation_dispatcher.h b/content/renderer/presentation/presentation_dispatcher.h
index 89f6b9f13053b4e54b954fd7f823fc3af030cb83..4642a644ba19899a626ce3a0db05f8e070d277cf 100644
--- a/content/renderer/presentation/presentation_dispatcher.h
+++ b/content/renderer/presentation/presentation_dispatcher.h
@@ -50,6 +50,11 @@ class CONTENT_EXPORT PresentationDispatcher
       const blink::WebString& presentationId,
       const uint8* data,
       size_t length);
+  virtual void sendBlobData(
+      const blink::WebString& presentationUrl,
+      const blink::WebString& presentationId,
+      const uint8* data,
+      size_t length);
   virtual void closeSession(
       const blink::WebString& presentationUrl,
       const blink::WebString& presentationId);