[PresentationAPI] Plumbing |onstatechange| event for the PresentationSession from Blink to platform/

Source/modules/presentation/Presentation.cpp

Index: Source/modules/presentation/Presentation.cpp
diff --git a/Source/modules/presentation/Presentation.cpp b/Source/modules/presentation/Presentation.cpp
index 0e470d6bc75f570accdb7035c48c0620ce362e4e..498b6d25b088a6717ba1c0e365f7dd9218e39db8 100644
--- a/Source/modules/presentation/Presentation.cpp
+++ b/Source/modules/presentation/Presentation.cpp
@@ -17,6 +17,7 @@
 #include "modules/presentation/DefaultSessionStartEvent.h"
 #include "modules/presentation/PresentationController.h"
 #include "modules/presentation/PresentationSessionClientCallbacks.h"
+#include "public/platform/modules/presentation/WebPresentationSessionClient.h"
 
 namespace blink {
 
@@ -156,6 +157,15 @@ void Presentation::registerSession(PresentationSession* session)
     m_openSessions.add(session);
 }
 
+PresentationSession* Presentation::findSession(WebPresentationSessionClient* sessionClient)
+{
+    for (auto it = m_openSessions.begin(); it != m_openSessions.end(); ++it) {

[Peter Beverloo, 2015/03/20 19:07:40]

for (const auto& session : m_openSessions)

[whywhat, 2015/03/23 21:12:16]

Done. I can't use a const iterator since I need to return a pointer to the
mutable object.

+        if ((*it)->matches(sessionClient))
+            return it->get();
+    }
+    return nullptr;
+}
+
 PresentationController* Presentation::presentationController()
 {
     if (!frame())