[PresentationAPI] Plumbing send() from PresentationSession IDL to platform/.

Source/modules/presentation/PresentationController.h

Index: Source/modules/presentation/PresentationController.h
diff --git a/Source/modules/presentation/PresentationController.h b/Source/modules/presentation/PresentationController.h
index cc6c3c2c8ddea430badf6aa252aae53cfad29f81..479f9a587f11f81712285134b2a832cd20b34fdd 100644
--- a/Source/modules/presentation/PresentationController.h
+++ b/Source/modules/presentation/PresentationController.h
@@ -56,6 +56,12 @@ public:
     // Called when the frame wants to join an existing presentation.
     void joinSession(const String& presentationUrl, const String& presentationId, WebPresentationSessionClientCallbacks*);
 
+    // Called when the frame wants to send String message to an existing presentation.
+    void send(const String& url, const String& presentationId, const String& message);

[mlamouri (slow - plz ping), 2015/04/16 10:06:30]

ditto

[USE s.singapati at gmail.com, 2015/04/16 16:10:01]

Done. renamed to presentationUrl.

+
+    // Called when the frame wants to send ArrayBuffer/View data to an existing presentation.
+    void send(const String& url, const String& presentationId, const char* data, size_t length);

[mlamouri (slow - plz ping), 2015/04/16 10:06:30]

ditto

[USE s.singapati at gmail.com, 2015/04/16 16:10:01]

Done.

+
     // Called when the frame wants to close an existing presentation.
     void closeSession(const String& url, const String& presentationId);