Implement basic crash detection and shutdown handling for out of process PPAP...

webkit/plugins/ppapi/ppapi_plugin_instance.h

 // Copyright (c) 2010 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 WEBKIT_PLUGINS_PPAPI_PPAPI_PLUGIN_INSTANCE_H_
 #define WEBKIT_PLUGINS_PPAPI_PPAPI_PLUGIN_INSTANCE_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 104 matching lines @@
   void ScrollRect(int dx, int dy, const gfx::Rect& rect);
 
   // If the plugin instance is backed by a texture, return its texture ID in the
   // compositor's namespace. Otherwise return 0. Returns 0 by default.
   virtual unsigned GetBackingTextureId();
 
   // Commit the backing texture to the screen once the side effects some
   // rendering up to an offscreen SwapBuffers are visible.
   void CommitBackingTexture();
 
+  // Called when the out-of-process plugin implementing this instance crashed.
+  void InstanceCrashed();
+
   // PPB_Instance implementation.
   PP_Var GetWindowObject();
   PP_Var GetOwnerElementObject();
   bool BindGraphics(PP_Resource graphics_id);
   bool full_frame() const { return full_frame_; }
   bool SetCursor(PP_CursorType_Dev type);
   PP_Var ExecuteScript(PP_Var script, PP_Var* exception);
 
   // PPP_Instance pass-through.
   void Delete();
@@ skipping 201 matching lines @@
   typedef std::map<NPObject*, ObjectVar*> NPObjectToObjectVarMap;
   NPObjectToObjectVarMap np_object_to_object_var_;
 
   DISALLOW_COPY_AND_ASSIGN(PluginInstance);
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PPAPI_PLUGIN_INSTANCE_H_