Web MIDI: add RequestMIDISysExPermission to BrowserContext

content/public/browser/browser_context.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_BROWSER_BROWSER_CONTEXT_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_CONTEXT_H_
 
 #include "base/callback_forward.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 26 matching lines @@
 class IndexedDBContext;
 class ResourceContext;
 class SiteInstance;
 class StoragePartition;
 
 // This class holds the context needed for a browsing session.
 // It lives on the UI thread. All these methods must only be called on the UI
 // thread.
 class CONTENT_EXPORT BrowserContext : public base::SupportsUserData {
  public:
-  // Used in ForEachStoragePartition(). The first argument is the partition id.
-  // The second argument is the StoragePartition object for that partition id.
-  typedef base::Callback<void(StoragePartition*)> StoragePartitionCallback;
-
   static DownloadManager* GetDownloadManager(BrowserContext* browser_context);
 
   // Returns BrowserContext specific external mount points. It may return NULL
   // if the context doesn't have any BrowserContext specific external mount
   // points. Currenty, non-NULL value is returned only on ChromeOS.
   static fileapi::ExternalMountPoints* GetMountPoints(BrowserContext* context);
 
   static content::StoragePartition* GetStoragePartition(
       BrowserContext* browser_context, SiteInstance* site_instance);
   static content::StoragePartition* GetStoragePartitionForSite(
       BrowserContext* browser_context, const GURL& site);
+  typedef base::Callback<void(StoragePartition*)> StoragePartitionCallback;
   static void ForEachStoragePartition(
       BrowserContext* browser_context,
       const StoragePartitionCallback& callback);
   static void AsyncObliterateStoragePartition(
       BrowserContext* browser_context,
       const GURL& site,
       const base::Closure& on_gc_required);
 
   // This function clears the contents of |active_paths| but does not take
   // ownership of the pointer.
@@ skipping 49 matching lines @@
 
   // Returns the request context for media resources associated with this
   // context and renderer process.
   virtual net::URLRequestContextGetter* GetMediaRequestContextForRenderProcess(
       int renderer_child_id) = 0;
   virtual net::URLRequestContextGetter*
       GetMediaRequestContextForStoragePartition(
           const base::FilePath& partition_path,
           bool in_memory) = 0;
 
+  typedef base::Callback<void(bool)> MIDISysExPermissionCallback;
+
+  // Requests a permission to use system exclusive messages in MIDI events.
+  // |callback| will be invoked when the request is resolved.
+  virtual void RequestMIDISysExPermission(
+      int render_process_id,
+      int render_view_id,
+      const GURL& requesting_frame,
+      const MIDISysExPermissionCallback& callback) = 0;
+
   // Returns the resource context.
   virtual ResourceContext* GetResourceContext() = 0;
 
   // Returns the DownloadManagerDelegate for this context. This will be called
   // once per context. The embedder owns the delegate and is responsible for
   // ensuring that it outlives DownloadManager. It's valid to return NULL.
   virtual DownloadManagerDelegate* GetDownloadManagerDelegate() = 0;
 
   // Returns the geolocation permission context for this context. It's valid to
   // return NULL, in which case geolocation requests will always be allowed.
@@ skipping 12 matching lines @@
 struct hash<content::BrowserContext*> {
   std::size_t operator()(content::BrowserContext* const& p) const {
     return reinterpret_cast<std::size_t>(p);
   }
 };
 
 }  // namespace BASE_HASH_NAMESPACE
 #endif
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_CONTEXT_H_