[PresentationAPI] Implements send API for Blob data from WebPresentationClient

content/browser/presentation/presentation_service_impl.cc

Index: content/browser/presentation/presentation_service_impl.cc
diff --git a/content/browser/presentation/presentation_service_impl.cc b/content/browser/presentation/presentation_service_impl.cc
index 916ddedd356548c9607c8a1ca4b26fba513c95ed..b1ecd6a57c7d011724e8505c9f598417dee175be 100644
--- a/content/browser/presentation/presentation_service_impl.cc
+++ b/content/browser/presentation/presentation_service_impl.cc
@@ -49,6 +49,20 @@ presentation::SessionMessagePtr ToMojoSessionMessage(
   return output.Pass();
 }
 
+content::PresentationMessageType GetMessageTypeFromMojo(
+    presentation::PresentationMessageType mojoPresentationMessageType) {
+  switch (mojoPresentationMessageType) {
+    case presentation::PRESENTATION_MESSAGE_TYPE_TEXT:
+      return content::PresentationMessageType::TEXT;
+    case presentation::PRESENTATION_MESSAGE_TYPE_ARRAY_BUFFER:
+      return content::PresentationMessageType::ARRAY_BUFFER;
+    case presentation::PRESENTATION_MESSAGE_TYPE_BLOB:
+      return content::PresentationMessageType::BLOB;
+  }
+  NOTREACHED();
+  return content::PresentationMessageType::ARRAY_BUFFER;
+}
+
 scoped_ptr<content::PresentationSessionMessage> GetPresentationSessionMessage(
     presentation::SessionMessagePtr input) {
   DCHECK(!input.is_null());
@@ -67,8 +81,8 @@ scoped_ptr<content::PresentationSessionMessage> GetPresentationSessionMessage(
         make_scoped_ptr(new std::string));
     input->message.Swap(output->message.get());
 
-  } else if (input->type == presentation::PresentationMessageType::
-              PRESENTATION_MESSAGE_TYPE_ARRAY_BUFFER) {
+  } else {
+    // ArrayBuffer or Blob data.

[mark a. foltz, 2015/06/02 23:51:02]

Prefer using switch() statement with NOTREACHED so new enum values don't fall
through to this case.

[USE s.singapati at gmail.com, 2015/06/03 15:03:50]

Done.

     DCHECK(!input->data.is_null());
     DCHECK(input->message.is_null());
     // Return null PresentationSessionMessage if size exceeds.
@@ -78,7 +92,8 @@ scoped_ptr<content::PresentationSessionMessage> GetPresentationSessionMessage(
     output = content::PresentationSessionMessage::CreateBinaryMessage(
         input->presentation_url,
         input->presentation_id,
-        make_scoped_ptr(new std::vector<uint8_t>));
+        make_scoped_ptr(new std::vector<uint8_t>),
+        GetMessageTypeFromMojo(input->type));
     input->data.Swap(output->data.get());
   }