[PresentationAPI] Implements send API for Blob data from WebPresentationClient

content/public/browser/presentation_session_message.cc

Index: content/public/browser/presentation_session_message.cc
diff --git a/content/public/browser/presentation_session_message.cc b/content/public/browser/presentation_session_message.cc
index a03a055b0049e65eb7ceb22d4fd2b905ed4459c0..c8b5fc9e0acfae4c2a30b2dbda8cbe7f72accb37 100644
--- a/content/public/browser/presentation_session_message.cc
+++ b/content/public/browser/presentation_session_message.cc
@@ -13,17 +13,20 @@ PresentationSessionMessage::PresentationSessionMessage(
     : presentation_url(presentation_url),
       presentation_id(presentation_id),
       message(message.Pass()),
-      data(nullptr) {
+      data(nullptr),
+      type(PresentationMessageType::TEXT) {
 }
 
 PresentationSessionMessage::PresentationSessionMessage(
     const std::string& presentation_url,
     const std::string& presentation_id,
-    scoped_ptr<std::vector<uint8_t>> data)
+    scoped_ptr<std::vector<uint8_t>> data,
+    PresentationMessageType type)
     : presentation_url(presentation_url),
       presentation_id(presentation_id),
       message(nullptr),
-      data(data.Pass()) {
+      data(data.Pass()),
+      type(type) {
 }
 
 // static
@@ -41,9 +44,10 @@ scoped_ptr<PresentationSessionMessage>
 PresentationSessionMessage::CreateBinaryMessage(
     const std::string& presentation_url,
     const std::string& presentation_id,
-    scoped_ptr<std::vector<uint8_t>> data) {
+    scoped_ptr<std::vector<uint8_t>> data,
+    PresentationMessageType type) {
   return scoped_ptr<PresentationSessionMessage>(new PresentationSessionMessage(
-      presentation_url, presentation_id, data.Pass()));
+      presentation_url, presentation_id, data.Pass(), type));
 }
 
 bool PresentationSessionMessage::is_binary() const {