Allow passing parameters within appview

chrome/browser/guest_view/app_view/app_view_guest.cc

Index: chrome/browser/guest_view/app_view/app_view_guest.cc
diff --git a/chrome/browser/guest_view/app_view/app_view_guest.cc b/chrome/browser/guest_view/app_view/app_view_guest.cc
index 6df3c5d4193e1391363e61a5dfcd7dd8c68c1855..1b76ea04e2ff2e4cc29904c9b3359cb71e5a0184 100644
--- a/chrome/browser/guest_view/app_view/app_view_guest.cc
+++ b/chrome/browser/guest_view/app_view/app_view_guest.cc
@@ -150,6 +150,12 @@ void AppViewGuest::CreateWebContents(
     return;
   }
 
+  const base::DictionaryValue* params = NULL;
+  if (!create_params.GetDictionary(appview::kParams, &params)) {
+    callback.Run(NULL);
+    return;
+  }
+
   ExtensionService* service =
       extensions::ExtensionSystem::Get(browser_context())->extension_service();
   const extensions::Extension* guest_extension =
@@ -176,9 +182,11 @@ void AppViewGuest::CreateWebContents(
   if (queue->ShouldEnqueueTask(browser_context(), guest_extension)) {
     queue->AddPendingTask(browser_context(),
                           guest_extension->id(),
-                          base::Bind(&AppViewGuest::LaunchAppAndFireEvent,
-                                     weak_ptr_factory_.GetWeakPtr(),
-                                     callback));
+                          base::Bind(
+                              &AppViewGuest::LaunchAppAndFireEvent,
+                              weak_ptr_factory_.GetWeakPtr(),
+                              base::Passed(make_scoped_ptr(params->DeepCopy())),
+                              callback));
     return;
   }
 
@@ -187,7 +195,7 @@ void AppViewGuest::CreateWebContents(
   ExtensionHost* host =
       process_manager->GetBackgroundHostForExtension(guest_extension->id());
   DCHECK(host);
-  LaunchAppAndFireEvent(callback, host);
+  LaunchAppAndFireEvent(make_scoped_ptr(params->DeepCopy()), callback, host);
 }
 
 void AppViewGuest::DidAttachToEmbedder() {
@@ -229,6 +237,7 @@ void AppViewGuest::CompleteCreateWebContents(
 }
 
 void AppViewGuest::LaunchAppAndFireEvent(
+    scoped_ptr<base::DictionaryValue> params,
     const WebContentsCreatedCallback& callback,
     ExtensionHost* extension_host) {
   extensions::ExtensionSystem* system =
@@ -244,6 +253,7 @@ void AppViewGuest::LaunchAppAndFireEvent(
   scoped_ptr<base::DictionaryValue> embed_request(new base::DictionaryValue());
   embed_request->SetInteger(appview::kGuestInstanceID, GetGuestInstanceID());
   embed_request->SetString(appview::kEmbedderID, embedder_extension_id());
+  embed_request->Set(appview::kParams, params.release());
   extensions::AppRuntimeEventRouter::DispatchOnEmbedRequestedEvent(
       browser_context(), embed_request.Pass(), extension_host->extension());
 }