libcef:

- Add support for embedded netscape-style plugins.
- Add new webkit_glue VisitedLinkHash() and IsLinkVisited() functions required by underlying chromium changes.
cefclient:
- Add sample netscape-style plugin implementation and related Plugin item on the Tests menu.
- Increase the speed of the update timer so that buttons refresh closer to real-time.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@5 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/plugins/browser_plugin_stream_url.h

@@ -0,0 +1,67 @@
+// Copyright (c) 2008 The Chromium Embedded Framework Authors.
+// Portions copyright (c) 2006-2008 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 _BROWSER_PLUGIN_STREAM_URL_H
+#define _BROWSER_PLUGIN_STREAM_URL_H
+
+#include "browser_plugin_stream.h"
+
+#include "webkit/glue/webplugin.h"
+#include "googleurl/src/gurl.h"
+
+namespace NPAPI {
+
+class BrowserPluginInstance;
+
+// A NPAPI Stream based on a URL.
+class BrowserPluginStreamUrl : public BrowserPluginStream,
+                               public WebPluginResourceClient {
+ public:
+  // Create a new stream for sending to the plugin by fetching
+  // a URL. If notifyNeeded is set, then the plugin will be notified
+  // when the stream has been fully sent to the plugin.  Initialize
+  // must be called before the object is used.
+  BrowserPluginStreamUrl(int resource_id,
+                  const GURL &url,
+                  BrowserPluginInstance *instance,
+                  bool notify_needed,
+                  void *notify_data);
+  virtual ~BrowserPluginStreamUrl();
+
+  // Stop sending the stream to the client.
+  // Overrides the base Close so we can cancel our fetching the URL if
+  // it is still loading.
+  virtual bool Close(NPReason reason);
+
+  virtual WebPluginResourceClient* AsResourceClient() {
+    return static_cast<WebPluginResourceClient*>(this);
+  }
+
+  virtual void CancelRequest();
+
+  //
+  // WebPluginResourceClient methods
+  //
+  void WillSendRequest(const GURL& url);
+  void DidReceiveResponse(const std::string& mime_type,
+                          const std::string& headers,
+                          uint32 expected_length,
+                          uint32 last_modified,
+                          bool* cancel);
+  void DidReceiveData(const char* buffer, int length, int data_offset);
+  void DidFinishLoading();
+  void DidFail();
+
+
+ private:
+  GURL url_;
+  int id_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(BrowserPluginStreamUrl);
+};
+
+} // namespace NPAPI
+
+#endif // _BROWSER_PLUGIN_STREAM_URL_H