Add Resource Handler for creating Streams to forward to extensions

chrome/browser/extensions/api/streams_private/streams_private_api.cc

Index: chrome/browser/extensions/api/streams_private/streams_private_api.cc
diff --git a/chrome/browser/extensions/api/streams_private/streams_private_api.cc b/chrome/browser/extensions/api/streams_private/streams_private_api.cc
index db22e8e2a03b611fa67b5f6f9f2e07cdc2566a04..1018b72455bd2c632accdd6eb8a66ed9728c4c77 100644
--- a/chrome/browser/extensions/api/streams_private/streams_private_api.cc
+++ b/chrome/browser/extensions/api/streams_private/streams_private_api.cc
@@ -15,6 +15,7 @@
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/mime_types_handler.h"
+#include "content/public/browser/stream_handle.h"
 
 namespace keys = extension_input_module_constants;
 
@@ -27,14 +28,42 @@ const char kOnExecuteMimeTypeHandler[] =
 
 namespace extensions {
 
+// static
+StreamsPrivateAPI* StreamsPrivateAPI::Get(Profile* profile) {
+  return GetFactoryInstance()->GetForProfile(profile);
+}
+
 StreamsPrivateAPI::StreamsPrivateAPI(Profile* profile)
-    : profile_(profile) {
+    : profile_(profile),
+      weak_ptr_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
   (new MimeTypesHandlerParser)->Register();
+
+  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
+                 content::Source<Profile>(profile));
 }
 
 StreamsPrivateAPI::~StreamsPrivateAPI() {
 }
 
+void StreamsPrivateAPI::ExecuteMimeTypeHandler(
+    const std::string& extension_id,
+    scoped_ptr<content::StreamHandle> stream) {
+  // Create the event's arguments value.
+  scoped_ptr<ListValue> event_args(new ListValue());
+  event_args->Append(new base::StringValue(stream->GetMimeType()));
+  event_args->Append(new base::StringValue(stream->GetOriginalURL().spec()));
+  event_args->Append(new base::StringValue(stream->GetURL().spec()));
+
+  scoped_ptr<Event> event(new Event(events::kOnExecuteMimeTypeHandler,
+                                    event_args.Pass()));
+
+  ExtensionSystem::Get(profile_)->event_router()->DispatchEventToExtension(
+      extension_id, event.Pass());
+
+  streams_[extension_id][stream->GetURL()] =
+      make_linked_ptr(stream.release());
+}
+
 static base::LazyInstance<ProfileKeyedAPIFactory<StreamsPrivateAPI> >
     g_factory = LAZY_INSTANCE_INITIALIZER;
 
@@ -44,4 +73,13 @@ ProfileKeyedAPIFactory<StreamsPrivateAPI>*
   return &g_factory.Get();
 }
 
+void StreamsPrivateAPI::Observe(int type,
+                                const content::NotificationSource& source,
+                                const content::NotificationDetails& details) {
+  if (type == chrome::NOTIFICATION_EXTENSION_UNLOADED) {
+    const Extension* extension =
+        content::Details<const UnloadedExtensionInfo>(details)->extension;
+    streams_.erase(extension->id());
+  }
+}
 }  // namespace extensions