Moved the following IPC messages used by the chrome NPAPI plugin installer out of content

webkit/plugins/npapi/plugin_host.cc

 // Copyright (c) 2011 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/npapi/plugin_host.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string_piece.h"
@@ skipping 763 matching lines @@
       NPBool* private_mode = reinterpret_cast<NPBool*>(value);
       scoped_refptr<PluginInstance> plugin(FindInstance(id));
       if (!plugin.get()) {
         NOTREACHED();
         return NPERR_INVALID_INSTANCE_ERROR;
       }
       *private_mode = plugin->webplugin()->IsOffTheRecord();
       rv = NPERR_NO_ERROR;
       break;
     }
-    case webkit::npapi::default_plugin::kMissingPluginStatusStart +
-         webkit::npapi::default_plugin::MISSING_PLUGIN_AVAILABLE:
-    // fall through
-    case webkit::npapi::default_plugin::kMissingPluginStatusStart +
-         webkit::npapi::default_plugin::MISSING_PLUGIN_USER_STARTED_DOWNLOAD: {
-      // This is a hack for the default plugin to send notification to
-      // renderer.  Even though we check if the plugin is the default plugin,
-      // we still need to worry about future standard change that may conflict
-      // with the variable definition, in order to avoid duplicate case clauses
-      // in this big switch statement.
-      scoped_refptr<PluginInstance> plugin(FindInstance(id));
-      if (!plugin.get()) {
-        NOTREACHED();
-        return NPERR_INVALID_INSTANCE_ERROR;
-      }
-      if (plugin->plugin_lib()->plugin_info().path.value() ==
-            webkit::npapi::kDefaultPluginLibraryName) {
-        plugin->webplugin()->OnMissingPluginStatus(variable -
-            webkit::npapi::default_plugin::kMissingPluginStatusStart);
-      }
-      break;
-    }
   #if defined(OS_MACOSX)
     case NPNVpluginDrawingModel: {
       // return the drawing model that was negotiated when we initialized.
       scoped_refptr<PluginInstance> plugin(FindInstance(id));
       if (!plugin.get()) {
         NOTREACHED();
         return NPERR_INVALID_INSTANCE_ERROR;
       }
       *reinterpret_cast<int*>(value) = plugin->drawing_model();
       rv = NPERR_NO_ERROR;
@@ skipping 333 matching lines @@
 }
 
 void NPN_URLRedirectResponse(NPP instance, void* notify_data, NPBool allow) {
   scoped_refptr<PluginInstance> plugin(FindInstance(instance));
   if (plugin.get()) {
     plugin->URLRedirectResponse(!!allow, notify_data);
   }
 }
 
 }  // extern "C"