Move base to DEPS

base/path_service.cc

Index: base/path_service.cc
diff --git a/base/path_service.cc b/base/path_service.cc
deleted file mode 100644
index 3c437ee74930aa99f2bfb532d5f78954187632ae..0000000000000000000000000000000000000000
--- a/base/path_service.cc
+++ /dev/null
@@ -1,341 +0,0 @@
-// 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 "base/path_service.h"
-
-#if defined(OS_WIN)
-#include <windows.h>
-#include <shellapi.h>
-#include <shlobj.h>
-#endif
-
-#include "base/containers/hash_tables.h"
-#include "base/files/file_path.h"
-#include "base/files/file_util.h"
-#include "base/lazy_instance.h"
-#include "base/logging.h"
-#include "base/synchronization/lock.h"
-
-using base::FilePath;
-using base::MakeAbsoluteFilePath;
-
-namespace base {
-  bool PathProvider(int key, FilePath* result);
-#if defined(OS_WIN)
-  bool PathProviderWin(int key, FilePath* result);
-#elif defined(OS_MACOSX)
-  bool PathProviderMac(int key, FilePath* result);
-#elif defined(OS_ANDROID)
-  bool PathProviderAndroid(int key, FilePath* result);
-#elif defined(OS_POSIX)
-  // PathProviderPosix is the default path provider on POSIX OSes other than
-  // Mac and Android.
-  bool PathProviderPosix(int key, FilePath* result);
-#endif
-}  // namespace base
-
-namespace {
-
-typedef base::hash_map<int, FilePath> PathMap;
-
-// We keep a linked list of providers.  In a debug build we ensure that no two
-// providers claim overlapping keys.
-struct Provider {
-  PathService::ProviderFunc func;
-  struct Provider* next;
-#ifndef NDEBUG
-  int key_start;
-  int key_end;
-#endif
-  bool is_static;
-};
-
-Provider base_provider = {
-  base::PathProvider,
-  NULL,
-#ifndef NDEBUG
-  base::PATH_START,
-  base::PATH_END,
-#endif
-  true
-};
-
-#if defined(OS_WIN)
-Provider base_provider_win = {
-  base::PathProviderWin,
-  &base_provider,
-#ifndef NDEBUG
-  base::PATH_WIN_START,
-  base::PATH_WIN_END,
-#endif
-  true
-};
-#endif
-
-#if defined(OS_MACOSX)
-Provider base_provider_mac = {
-  base::PathProviderMac,
-  &base_provider,
-#ifndef NDEBUG
-  base::PATH_MAC_START,
-  base::PATH_MAC_END,
-#endif
-  true
-};
-#endif
-
-#if defined(OS_ANDROID)
-Provider base_provider_android = {
-  base::PathProviderAndroid,
-  &base_provider,
-#ifndef NDEBUG
-  base::PATH_ANDROID_START,
-  base::PATH_ANDROID_END,
-#endif
-  true
-};
-#endif
-
-#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
-Provider base_provider_posix = {
-  base::PathProviderPosix,
-  &base_provider,
-#ifndef NDEBUG
-  base::PATH_POSIX_START,
-  base::PATH_POSIX_END,
-#endif
-  true
-};
-#endif
-
-
-struct PathData {
-  base::Lock lock;
-  PathMap cache;        // Cache mappings from path key to path value.
-  PathMap overrides;    // Track path overrides.
-  Provider* providers;  // Linked list of path service providers.
-  bool cache_disabled;  // Don't use cache if true;
-
-  PathData() : cache_disabled(false) {
-#if defined(OS_WIN)
-    providers = &base_provider_win;
-#elif defined(OS_MACOSX)
-    providers = &base_provider_mac;
-#elif defined(OS_ANDROID)
-    providers = &base_provider_android;
-#elif defined(OS_POSIX)
-    providers = &base_provider_posix;
-#endif
-  }
-
-  ~PathData() {
-    Provider* p = providers;
-    while (p) {
-      Provider* next = p->next;
-      if (!p->is_static)
-        delete p;
-      p = next;
-    }
-  }
-};
-
-static base::LazyInstance<PathData> g_path_data = LAZY_INSTANCE_INITIALIZER;
-
-static PathData* GetPathData() {
-  return g_path_data.Pointer();
-}
-
-// Tries to find |key| in the cache. |path_data| should be locked by the caller!
-bool LockedGetFromCache(int key, const PathData* path_data, FilePath* result) {
-  if (path_data->cache_disabled)
-    return false;
-  // check for a cached version
-  PathMap::const_iterator it = path_data->cache.find(key);
-  if (it != path_data->cache.end()) {
-    *result = it->second;
-    return true;
-  }
-  return false;
-}
-
-// Tries to find |key| in the overrides map. |path_data| should be locked by the
-// caller!
-bool LockedGetFromOverrides(int key, PathData* path_data, FilePath* result) {
-  // check for an overridden version.
-  PathMap::const_iterator it = path_data->overrides.find(key);
-  if (it != path_data->overrides.end()) {
-    if (!path_data->cache_disabled)
-      path_data->cache[key] = it->second;
-    *result = it->second;
-    return true;
-  }
-  return false;
-}
-
-}  // namespace
-
-// TODO(brettw): this function does not handle long paths (filename > MAX_PATH)
-// characters). This isn't supported very well by Windows right now, so it is
-// moot, but we should keep this in mind for the future.
-// static
-bool PathService::Get(int key, FilePath* result) {
-  PathData* path_data = GetPathData();
-  DCHECK(path_data);
-  DCHECK(result);
-  DCHECK_GE(key, base::DIR_CURRENT);
-
-  // special case the current directory because it can never be cached
-  if (key == base::DIR_CURRENT)
-    return base::GetCurrentDirectory(result);
-
-  Provider* provider = NULL;
-  {
-    base::AutoLock scoped_lock(path_data->lock);
-    if (LockedGetFromCache(key, path_data, result))
-      return true;
-
-    if (LockedGetFromOverrides(key, path_data, result))
-      return true;
-
-    // Get the beginning of the list while it is still locked.
-    provider = path_data->providers;
-  }
-
-  FilePath path;
-
-  // Iterating does not need the lock because only the list head might be
-  // modified on another thread.
-  while (provider) {
-    if (provider->func(key, &path))
-      break;
-    DCHECK(path.empty()) << "provider should not have modified path";
-    provider = provider->next;
-  }
-
-  if (path.empty())
-    return false;
-
-  if (path.ReferencesParent()) {
-    // Make sure path service never returns a path with ".." in it.
-    path = MakeAbsoluteFilePath(path);
-    if (path.empty())
-      return false;
-  }
-  *result = path;
-
-  base::AutoLock scoped_lock(path_data->lock);
-  if (!path_data->cache_disabled)
-    path_data->cache[key] = path;
-
-  return true;
-}
-
-// static
-bool PathService::Override(int key, const FilePath& path) {
-  // Just call the full function with true for the value of |create|, and
-  // assume that |path| may not be absolute yet.
-  return OverrideAndCreateIfNeeded(key, path, false, true);
-}
-
-// static
-bool PathService::OverrideAndCreateIfNeeded(int key,
-                                            const FilePath& path,
-                                            bool is_absolute,
-                                            bool create) {
-  PathData* path_data = GetPathData();
-  DCHECK(path_data);
-  DCHECK_GT(key, base::DIR_CURRENT) << "invalid path key";
-
-  FilePath file_path = path;
-
-  // For some locations this will fail if called from inside the sandbox there-
-  // fore we protect this call with a flag.
-  if (create) {
-    // Make sure the directory exists. We need to do this before we translate
-    // this to the absolute path because on POSIX, MakeAbsoluteFilePath fails
-    // if called on a non-existent path.
-    if (!base::PathExists(file_path) &&
-        !base::CreateDirectory(file_path))
-      return false;
-  }
-
-  // We need to have an absolute path.
-  if (!is_absolute) {
-    file_path = MakeAbsoluteFilePath(file_path);
-    if (file_path.empty())
-      return false;
-  }
-  DCHECK(file_path.IsAbsolute());
-
-  base::AutoLock scoped_lock(path_data->lock);
-
-  // Clear the cache now. Some of its entries could have depended
-  // on the value we are overriding, and are now out of sync with reality.
-  path_data->cache.clear();
-
-  path_data->overrides[key] = file_path;
-
-  return true;
-}
-
-// static
-bool PathService::RemoveOverride(int key) {
-  PathData* path_data = GetPathData();
-  DCHECK(path_data);
-
-  base::AutoLock scoped_lock(path_data->lock);
-
-  if (path_data->overrides.find(key) == path_data->overrides.end())
-    return false;
-
-  // Clear the cache now. Some of its entries could have depended on the value
-  // we are going to remove, and are now out of sync.
-  path_data->cache.clear();
-
-  path_data->overrides.erase(key);
-
-  return true;
-}
-
-// static
-void PathService::RegisterProvider(ProviderFunc func, int key_start,
-                                   int key_end) {
-  PathData* path_data = GetPathData();
-  DCHECK(path_data);
-  DCHECK_GT(key_end, key_start);
-
-  Provider* p;
-
-  p = new Provider;
-  p->is_static = false;
-  p->func = func;
-#ifndef NDEBUG
-  p->key_start = key_start;
-  p->key_end = key_end;
-#endif
-
-  base::AutoLock scoped_lock(path_data->lock);
-
-#ifndef NDEBUG
-  Provider *iter = path_data->providers;
-  while (iter) {
-    DCHECK(key_start >= iter->key_end || key_end <= iter->key_start) <<
-      "path provider collision";
-    iter = iter->next;
-  }
-#endif
-
-  p->next = path_data->providers;
-  path_data->providers = p;
-}
-
-// static
-void PathService::DisableCache() {
-  PathData* path_data = GetPathData();
-  DCHECK(path_data);
-
-  base::AutoLock scoped_lock(path_data->lock);
-  path_data->cache.clear();
-  path_data->cache_disabled = true;
-}