Handle plugin instance crash in ContentDecryptorDelegate.

content/renderer/pepper/pepper_plugin_instance_impl.cc

 // 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.
 
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 700 matching lines @@
   // Force free all resources and vars.
   HostGlobals::Get()->InstanceCrashed(pp_instance());
 
   // Free any associated graphics.
   SetFullscreen(false);
   FlashSetFullscreen(false, false);
   // Unbind current 2D or 3D graphics context.
   BindGraphics(pp_instance(), 0);
   InvalidateRect(gfx::Rect());
 
+  if (content_decryptor_delegate_) {
+    content_decryptor_delegate_->InstanceCrashed();
+    content_decryptor_delegate_.reset();
+  }
+
   render_frame_->PluginCrashed(module_->path(), module_->GetPeerProcessId());
   UnSetAndDeleteLockTargetAdapter();
 }
 
 static void SetGPUHistogram(const ppapi::Preferences& prefs,
                             const std::vector<std::string>& arg_names,
                             const std::vector<std::string>& arg_values) {
   // Calculate a histogram to let us determine how likely people are to try to
   // run Stage3D content on machines that have it blacklisted.
 #if defined(OS_WIN)
@@ skipping 2346 matching lines @@
     // Running out-of-process. Initiate an IPC call to notify the plugin
     // process.
     ppapi::proxy::HostDispatcher* dispatcher =
         ppapi::proxy::HostDispatcher::GetForInstance(pp_instance());
     dispatcher->Send(new PpapiMsg_PPPInstance_HandleDocumentLoad(
         ppapi::API_ID_PPP_INSTANCE, pp_instance(), pending_host_id, data));
   }
 }
 
 }  // namespace content