Block Adobe Reader from issuing NPN_GetURL/NPN_GetURLRequests for URL schemes...

chrome/plugin/webplugin_proxy.cc

 // 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.
 
 #include "chrome/plugin/webplugin_proxy.h"
 
 #include "base/gfx/gdi_util.h"
 #include "base/scoped_handle.h"
 #include "base/shared_memory.h"
 #include "base/singleton.h"
@@ skipping 219 matching lines @@
                                       bool is_javascript_url,
                                       const char* target, unsigned int len,
                                       const char* buf, bool is_file_data,
                                       bool notify, const char* url,
                                       void* notify_data, bool popups_allowed) {
   if (!url) {
     NOTREACHED();
     return;
   }
 
+  if (!target && (0 == _strcmpi(method, "GET"))) {
+    // Please refer to https://bugzilla.mozilla.org/show_bug.cgi?id=366082
+    // for more details on this.
+    if (delegate_->quirks() &
+        WebPluginDelegateImpl::PLUGIN_QUIRK_BLOCK_NONSTANDARD_GETURL_REQUESTS) {
+      GURL request_url(url);
+      if (!request_url.SchemeIs("http") && !request_url.SchemeIs("https") &&
+          !request_url.SchemeIs("ftp")) {
+        return;
+      }
+    }
+  }
+
   PluginHostMsg_URLRequest_Params params;
   params.method = method;
   params.is_javascript_url = is_javascript_url;
   if (target)
     params.target = std::string(target);
 
   if (len) {
     params.buffer.resize(len);
     memcpy(&params.buffer.front(), buf, len);
   }
@@ skipping 137 matching lines @@
 
   Send(new PluginHostMsg_InitiateHTTPRangeRequest(route_id_, url,
                                                   range_info, existing_stream,
                                                   notify_needed, notify_data));
 }
 
 void WebPluginProxy::OnPaint(const gfx::Rect& damaged_rect) {
   Paint(damaged_rect);
   Send(new PluginHostMsg_InvalidateRect(route_id_, damaged_rect));
 }