Fixes for re-enabling more MSVC level 4 warnings: content/renderer/ edition

content/renderer/render_view_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/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 1393 matching lines @@
     params.referrer = GetReferrerFromRequest(creator, request);
   }
   params.features = features;
 
   for (size_t i = 0; i < features.additionalFeatures.size(); ++i)
     params.additional_features.push_back(features.additionalFeatures[i]);
 
   int32 routing_id = MSG_ROUTING_NONE;
   int32 main_frame_routing_id = MSG_ROUTING_NONE;
   int32 surface_id = 0;
-  int64 cloned_session_storage_namespace_id;
+  int64 cloned_session_storage_namespace_id = 0;
 
   RenderThread::Get()->Send(
       new ViewHostMsg_CreateWindow(params,
                                    &routing_id,
                                    &main_frame_routing_id,
                                    &surface_id,
                                    &cloned_session_storage_namespace_id));
   if (routing_id == MSG_ROUTING_NONE)
     return NULL;
 
@@ skipping 2557 matching lines @@
     std::vector<gfx::Size> sizes;
     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
     if (!url.isEmpty())
       urls.push_back(
           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
   }
   SendUpdateFaviconURL(urls);
 }
 
 }  // namespace content