Update to Chromium version 78.0.3904.0 (#693954)

libcef/browser/request_context_handler_map.h

@@ -0,0 +1,61 @@
+// Copyright (c) 2019 The Chromium Embedded Framework 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 CEF_LIBCEF_BROWSER_REQUEST_CONTEXT_HANDLER_MAP_
+#define CEF_LIBCEF_BROWSER_REQUEST_CONTEXT_HANDLER_MAP_
+#pragma once
+
+#include <map>
+
+#include "include/cef_request_context.h"
+#include "include/cef_request_context_handler.h"
+
+#include "base/macros.h"
+
+// Tracks CefRequestContextHandler associations on a single thread.
+class CefRequestContextHandlerMap {
+ public:
+  CefRequestContextHandlerMap();
+  ~CefRequestContextHandlerMap();
+
+  // Keep track of handlers associated with specific frames. This information
+  // originates from frame create/delete notifications in CefBrowserHostImpl or
+  // CefMimeHandlerViewGuestDelegate which are forwarded via
+  // CefRequestContextImpl and CefBrowserContext.
+  void AddHandler(int render_process_id,
+                  int render_frame_id,
+                  int frame_tree_node_id,
+                  CefRefPtr<CefRequestContextHandler> handler);
+  void RemoveHandler(int render_process_id,
+                     int render_frame_id,
+                     int frame_tree_node_id);
+
+  // Returns the handler that matches the specified IDs. Pass -1 for unknown
+  // values. If |require_frame_match| is true only exact matches will be
+  // returned. If |require_frame_match| is false, and there is not an exact
+  // match, then the first handler for the same |render_process_id| will be
+  // returned.
+  CefRefPtr<CefRequestContextHandler> GetHandler(
+      int render_process_id,
+      int render_frame_id,
+      int frame_tree_node_id,
+      bool require_frame_match) const;
+
+ private:
+  // Map of (render_process_id, render_frame_id) to handler.
+  typedef std::map<std::pair<int, int>, CefRefPtr<CefRequestContextHandler>>
+      RenderIdHandlerMap;
+  RenderIdHandlerMap render_id_handler_map_;
+
+  // Map of frame_tree_node_id to handler. Keeping this map is necessary
+  // because, when navigating the main frame, a new (pre-commit) network request
+  // will be created before the RenderFrameHost. Consequently we can't rely
+  // on valid render IDs. See https://crbug.com/776884 for background.
+  typedef std::map<int, CefRefPtr<CefRequestContextHandler>> NodeIdHandlerMap;
+  NodeIdHandlerMap node_id_handler_map_;
+
+  DISALLOW_COPY_AND_ASSIGN(CefRequestContextHandlerMap);
+};
+
+#endif  // CEF_LIBCEF_BROWSER_REQUEST_CONTEXT_HANDLER_MAP_