Report PPAPI plugin load error code to UMA.

third_party/libjingle/overrides/init_webrtc.cc

 // Copyright 2013 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 "init_webrtc.h"
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/files/file_path.h"
 #include "base/native_library.h"
@@ skipping 62 matching lines @@
 
 bool InitializeWebRtcModule() {
   TRACE_EVENT0("webrtc", "InitializeWebRtcModule");
 
   if (g_create_webrtc_media_engine)
     return true;  // InitializeWebRtcModule has already been called.
 
   base::FilePath path(GetLibPeerConnectionPath());
   DVLOG(1) << "Loading WebRTC module: " << path.value();
 
-  std::string error;
-  static base::NativeLibrary lib =
-      base::LoadNativeLibrary(path, &error);
-  CHECK(lib) << error;
+  base::NativeLibraryLoadError error;
+  static base::NativeLibrary lib = base::LoadNativeLibrary(path, &error);
+  CHECK(lib) << error.ToString();
 
   InitializeModuleFunction initialize_module =
       reinterpret_cast<InitializeModuleFunction>(
           base::GetFunctionPointerFromNativeLibrary(
               lib, "InitializeModule"));
 
   // Initialize the proxy by supplying it with a pointer to our
   // allocator/deallocator routines.
   // On mac we use malloc zones, which are global, so we provide NULLs for
   // the alloc/dealloc functions.
@@ skipping 26 matching lines @@
   InitializeWebRtcModule();
   return g_create_webrtc_media_engine(adm, adm_sc, encoder_factory,
       decoder_factory);
 }
 
 void DestroyWebRtcMediaEngine(cricket::MediaEngineInterface* media_engine) {
   g_destroy_webrtc_media_engine(media_engine);
 }
 
 #endif  // LIBPEERCONNECTION_LIB