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

webkit/plugins/ppapi/ppapi_plugin_instance.cc

 // 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.
 
 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/scoped_ptr.h"
 #include "base/utf_string_conversions.h"
@@ skipping 399 matching lines @@
   return bound_graphics_3d()->GetBackingTextureId();
 }
 
 void PluginInstance::CommitBackingTexture() {
   if (fullscreen_container_)
     fullscreen_container_->Invalidate();
   else
     container_->commitBackingTexture();
 }
 
+void PluginInstance::InstanceCrashed() {
+  // Force free all resources and vars.
+  ResourceTracker::Get()->InstanceCrashed(pp_instance());
+
+  // Free any associated graphics.
+  SetFullscreen(false);
+  bound_graphics_ = NULL;
+  InvalidateRect(gfx::Rect());
+
+  // TODO(brettw) show a crashed plugin screen.
+}
+
 PP_Var PluginInstance::GetWindowObject() {
   if (!container_)
     return PP_MakeUndefined();
 
   WebFrame* frame = container_->element().document().frame();
   if (!frame)
     return PP_MakeUndefined();
 
   return ObjectVar::NPObjectToPPVar(this, frame->windowObject());
 }
@@ skipping 838 matching lines @@
   return found->second;
 }
 
 bool PluginInstance::IsFullPagePlugin() const {
   WebFrame* frame = container()->element().document().frame();
   return frame->view()->mainFrame()->document().isPluginDocument();
 }
 
 }  // namespace ppapi
 }  // namespace webkit