Reland "Remove chromeos::LibraryLoader"

chrome/browser/chromeos/cros/library_loader.cc

Index: chrome/browser/chromeos/cros/library_loader.cc
diff --git a/chrome/browser/chromeos/cros/library_loader.cc b/chrome/browser/chromeos/cros/library_loader.cc
deleted file mode 100644
index 419662a166976782d34edb26b51c5a8af7eae007..0000000000000000000000000000000000000000
--- a/chrome/browser/chromeos/cros/library_loader.cc
+++ /dev/null
@@ -1,69 +0,0 @@
-// 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 "chrome/browser/chromeos/cros/library_loader.h"
-
-#include <dlfcn.h>
-
-#include "base/compiler_specific.h"
-#include "base/file_path.h"
-#include "base/logging.h"
-#include "base/metrics/histogram.h"
-#include "base/path_service.h"
-#include "chrome/common/chrome_paths.h"
-#include "third_party/cros/chromeos_cros_api.h"
-
-namespace chromeos {
-
-namespace {
-
-void AddLibcrosTimeHistogram(const char* name, const base::TimeDelta& delta) {
-  static const base::TimeDelta min_time = base::TimeDelta::FromMilliseconds(1);
-  static const base::TimeDelta max_time = base::TimeDelta::FromSeconds(1);
-  const size_t bucket_count(10);
-  DCHECK(name);
-  base::Histogram* counter = base::Histogram::FactoryTimeGet(
-      std::string(name),
-      min_time,
-      max_time,
-      bucket_count,
-      base::Histogram::kNoFlags);
-  counter->AddTime(delta);
-  VLOG(1) << "Cros Time: " << name << ": " << delta.InMilliseconds() << "ms.";
-}
-
-}  // namespace
-
-class LibraryLoaderImpl : public LibraryLoader {
- public:
-  LibraryLoaderImpl();
-
-  // LibraryLoader:
-  virtual bool Load(std::string* load_error_string) OVERRIDE;
-};
-
-LibraryLoaderImpl::LibraryLoaderImpl() {}
-
-bool LibraryLoaderImpl::Load(std::string* load_error_string) {
-  bool loaded = false;
-  FilePath path;
-  if (PathService::Get(chrome::FILE_CHROMEOS_API, &path)) {
-    loaded = LoadLibcros(path.value().c_str(), *load_error_string);
-    if (loaded)
-      SetLibcrosTimeHistogramFunction(AddLibcrosTimeHistogram);
-  }
-
-  if (!loaded) {
-    LOG(ERROR) << "Problem loading chromeos shared object: "
-               << *load_error_string;
-  }
-  return loaded;
-}
-
-// static
-LibraryLoader* LibraryLoader::GetImpl() {
-  return new LibraryLoaderImpl();
-}
-
-}   // namespace chromeos