Fix some bugs with incorrect ! (both missing and extra) in the proxy error ha...

ppapi/proxy/ppb_font_proxy.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 "ppapi/proxy/ppb_font_proxy.h"
 
 #include "ppapi/c/dev/ppb_font_dev.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/plugin_resource.h"
 #include "ppapi/proxy/ppapi_messages.h"
@@ skipping 231 matching lines @@
   in_description.SetToPPFontDescription(dispatcher(), &in_pp_desc, false);
 
   // Make sure the output is always defined so we can still serialize it back
   // to the plugin below.
   PP_FontDescription_Dev out_pp_desc;
   memset(&out_pp_desc, 0, sizeof(PP_FontDescription_Dev));
   out_pp_desc.face = PP_MakeUndefined();
 
   result->SetHostResource(instance,
                           ppb_font_target()->Create(instance, &in_pp_desc));
-  if (result->is_null()) {
+  if (!result->is_null()) {
     // Get the metrics and resulting description to return to the browser.
     PP_FontMetrics_Dev metrics;
     if (ppb_font_target()->Describe(result->host_resource(), &out_pp_desc,
                                     &metrics)) {
         out_metrics->assign(reinterpret_cast<const char*>(&metrics),
                             sizeof(PP_FontMetrics_Dev));
     }
   }
 
   // This must always get called or it will assert when trying to serialize
@@ skipping 54 matching lines @@
   run.text = text.Get(dispatcher());
   run.rtl = text_is_rtl;
   run.override_direction = override_direction;
 
   *result = ppb_font_target()->PixelOffsetForCharacter(font.host_resource(),
                                                        &run, char_offset);
 }
 
 }  // namespace proxy
 }  // namespace pp