chrome/common/chrome_paths.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/common/chrome_paths.h"
   6
   7 #include "base/files/file_util.h"
   8 #include "base/lazy_instance.h"
   9 #include "base/logging.h"
  10 #include "base/mac/bundle_locations.h"
  11 #include "base/path_service.h"
  12 #include "base/strings/string_util.h"
  13 #include "base/sys_info.h"
  14 #include "base/threading/thread_restrictions.h"
  15 #include "base/version.h"
  16 #include "chrome/common/chrome_constants.h"
  17 #include "chrome/common/chrome_paths_internal.h"
  18 #include "chrome/common/widevine_cdm_constants.h"
  19 #include "ui/base/ui_base_paths.h"
  20
  21 #if defined(OS_ANDROID)
  22 #include "base/android/path_utils.h"
  23 #include "base/base_paths_android.h"
  24 #endif
  25
  26 #if defined(OS_MACOSX)
  27 #include "base/mac/foundation_util.h"
  28 #endif
  29
  30 #if defined(OS_WIN)
  31 #include "base/win/registry.h"
  32 #endif
  33
  34 #include "widevine_cdm_version.h"  // In SHARED_INTERMEDIATE_DIR.
  35
  36 namespace {
  37
  38 // The Pepper Flash plugins are in a directory with this name.
  39 const base::FilePath::CharType kPepperFlashBaseDirectory[] =
  40     FILE_PATH_LITERAL("PepperFlash");
  41
  42 #if defined(OS_MACOSX) && !defined(OS_IOS)
  43 const base::FilePath::CharType kPepperFlashSystemBaseDirectory[] =
  44     FILE_PATH_LITERAL("Internet Plug-Ins/PepperFlashPlayer");
  45 const base::FilePath::CharType kFlashSystemBaseDirectory[] =
  46     FILE_PATH_LITERAL("Internet Plug-Ins");
  47 const base::FilePath::CharType kFlashSystemPluginName[] =
  48     FILE_PATH_LITERAL("Flash Player.plugin");
  49 #endif
  50
  51 const base::FilePath::CharType kInternalNaClPluginFileName[] =
  52     FILE_PATH_LITERAL("internal-nacl-plugin");
  53
  54 #if defined(OS_LINUX)
  55 // The path to the external extension <id>.json files.
  56 // /usr/share seems like a good choice, see: http://www.pathname.com/fhs/
  57 const base::FilePath::CharType kFilepathSinglePrefExtensions[] =
  58 #if defined(GOOGLE_CHROME_BUILD)
  59     FILE_PATH_LITERAL("/usr/share/google-chrome/extensions");
  60 #else
  61     FILE_PATH_LITERAL("/usr/share/chromium/extensions");
  62 #endif  // defined(GOOGLE_CHROME_BUILD)
  63 #endif  // defined(OS_LINUX)
  64
  65 static base::LazyInstance<base::FilePath>
  66     g_invalid_specified_user_data_dir = LAZY_INSTANCE_INITIALIZER;
  67
  68 // Gets the path for internal plugins.
  69 bool GetInternalPluginsDirectory(base::FilePath* result) {
  70 #if defined(OS_MACOSX) && !defined(OS_IOS)
  71   // If called from Chrome, get internal plugins from a subdirectory of the
  72   // framework.
  73   if (base::mac::AmIBundled()) {
  74     *result = chrome::GetFrameworkBundlePath();
  75     DCHECK(!result->empty());
  76     *result = result->Append("Internet Plug-Ins");
  77     return true;
  78   }
  79   // In tests, just look in the module directory (below).
  80 #endif
  81
  82   // The rest of the world expects plugins in the module directory.
  83   return PathService::Get(base::DIR_MODULE, result);
  84 }
  85
  86 #if defined(OS_WIN)
  87 // Gets the Flash path if installed on the system. |is_npapi| determines whether
  88 // to return the NPAPI of the PPAPI version of the system plugin.
  89 bool GetSystemFlashFilename(base::FilePath* out_path, bool is_npapi) {
  90   const wchar_t kNpapiFlashRegistryRoot[] =
  91       L"SOFTWARE\\Macromedia\\FlashPlayerPlugin";
  92   const wchar_t kPepperFlashRegistryRoot[] =
  93       L"SOFTWARE\\Macromedia\\FlashPlayerPepper";
  94   const wchar_t kFlashPlayerPathValueName[] = L"PlayerPath";
  95
  96   base::win::RegKey path_key(
  97       HKEY_LOCAL_MACHINE,
  98       is_npapi ? kNpapiFlashRegistryRoot : kPepperFlashRegistryRoot, KEY_READ);
  99   base::string16 path_str;
 100   if (FAILED(path_key.ReadValue(kFlashPlayerPathValueName, &path_str)))
 101     return false;
 102
 103   *out_path = base::FilePath(path_str);
 104   return true;
 105 }
 106 #endif
 107
 108 }  // namespace
 109
 110 namespace chrome {
 111
 112 bool PathProvider(int key, base::FilePath* result) {
 113   // Some keys are just aliases...
 114   switch (key) {
 115     case chrome::DIR_APP:
 116       return PathService::Get(base::DIR_MODULE, result);
 117     case chrome::DIR_LOGS:
 118 #ifdef NDEBUG
 119       // Release builds write to the data dir
 120       return PathService::Get(chrome::DIR_USER_DATA, result);
 121 #else
 122       // Debug builds write next to the binary (in the build tree)
 123 #if defined(OS_MACOSX)
 124       if (!PathService::Get(base::DIR_EXE, result))
 125         return false;
 126       if (base::mac::AmIBundled()) {
 127         // If we're called from chrome, dump it beside the app (outside the
 128         // app bundle), if we're called from a unittest, we'll already
 129         // outside the bundle so use the exe dir.
 130         // exe_dir gave us .../Chromium.app/Contents/MacOS/Chromium.
 131         *result = result->DirName();
 132         *result = result->DirName();
 133         *result = result->DirName();
 134       }
 135       return true;
 136 #else
 137       return PathService::Get(base::DIR_EXE, result);
 138 #endif  // defined(OS_MACOSX)
 139 #endif  // NDEBUG
 140     case chrome::FILE_RESOURCE_MODULE:
 141       return PathService::Get(base::FILE_MODULE, result);
 142   }
 143
 144   // Assume that we will not need to create the directory if it does not exist.
 145   // This flag can be set to true for the cases where we want to create it.
 146   bool create_dir = false;
 147
 148   base::FilePath cur;
 149   switch (key) {
 150     case chrome::DIR_USER_DATA:
 151       if (!GetDefaultUserDataDirectory(&cur)) {
 152         NOTREACHED();
 153         return false;
 154       }
 155       create_dir = true;
 156       break;
 157     case chrome::DIR_USER_DOCUMENTS:
 158       if (!GetUserDocumentsDirectory(&cur))
 159         return false;
 160       create_dir = true;
 161       break;
 162     case chrome::DIR_USER_MUSIC:
 163       if (!GetUserMusicDirectory(&cur))
 164         return false;
 165       break;
 166     case chrome::DIR_USER_PICTURES:
 167       if (!GetUserPicturesDirectory(&cur))
 168         return false;
 169       break;
 170     case chrome::DIR_USER_VIDEOS:
 171       if (!GetUserVideosDirectory(&cur))
 172         return false;
 173       break;
 174     case chrome::DIR_DEFAULT_DOWNLOADS_SAFE:
 175 #if defined(OS_WIN) || defined(OS_LINUX)
 176       if (!GetUserDownloadsDirectorySafe(&cur))
 177         return false;
 178       break;
 179 #else
 180       // Fall through for all other platforms.
 181 #endif
 182     case chrome::DIR_DEFAULT_DOWNLOADS:
 183 #if defined(OS_ANDROID)
 184       if (!base::android::GetDownloadsDirectory(&cur))
 185         return false;
 186 #else
 187       if (!GetUserDownloadsDirectory(&cur))
 188         return false;
 189       // Do not create the download directory here, we have done it twice now
 190       // and annoyed a lot of users.
 191 #endif
 192       break;
 193     case chrome::DIR_CRASH_DUMPS:
 194 #if defined(OS_CHROMEOS)
 195       // ChromeOS uses a separate directory. See http://crosbug.com/25089
 196       cur = base::FilePath("/var/log/chrome");
 197 #elif defined(OS_ANDROID)
 198       if (!base::android::GetCacheDirectory(&cur))
 199         return false;
 200 #else
 201       // The crash reports are always stored relative to the default user data
 202       // directory.  This avoids the problem of having to re-initialize the
 203       // exception handler after parsing command line options, which may
 204       // override the location of the app's profile directory.
 205       if (!GetDefaultUserDataDirectory(&cur))
 206         return false;
 207 #endif
 208 #if defined(OS_MACOSX)
 209       cur = cur.Append(FILE_PATH_LITERAL("Crashpad"));
 210 #else
 211       cur = cur.Append(FILE_PATH_LITERAL("Crash Reports"));
 212 #endif
 213       create_dir = true;
 214       break;
 215 #if defined(OS_WIN)
 216     case chrome::DIR_WATCHER_DATA:
 217       // The watcher data is always stored relative to the default user data
 218       // directory.  This allows the watcher to be initialized before
 219       // command-line options have been parsed.
 220       if (!GetDefaultUserDataDirectory(&cur))
 221         return false;
 222       cur = cur.Append(FILE_PATH_LITERAL("Diagnostics"));
 223       break;
 224 #endif
 225     case chrome::DIR_RESOURCES:
 226 #if defined(OS_MACOSX)
 227       cur = base::mac::FrameworkBundlePath();
 228       cur = cur.Append(FILE_PATH_LITERAL("Resources"));
 229 #else
 230       if (!PathService::Get(chrome::DIR_APP, &cur))
 231         return false;
 232       cur = cur.Append(FILE_PATH_LITERAL("resources"));
 233 #endif
 234       break;
 235     case chrome::DIR_INSPECTOR:
 236       if (!PathService::Get(chrome::DIR_RESOURCES, &cur))
 237         return false;
 238       cur = cur.Append(FILE_PATH_LITERAL("inspector"));
 239       break;
 240     case chrome::DIR_APP_DICTIONARIES:
 241 #if defined(OS_POSIX)
 242       // We can't write into the EXE dir on Linux, so keep dictionaries
 243       // alongside the safe browsing database in the user data dir.
 244       // And we don't want to write into the bundle on the Mac, so push
 245       // it to the user data dir there also.
 246       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 247         return false;
 248 #else
 249       if (!PathService::Get(base::DIR_EXE, &cur))
 250         return false;
 251 #endif
 252       cur = cur.Append(FILE_PATH_LITERAL("Dictionaries"));
 253       create_dir = true;
 254       break;
 255     case chrome::DIR_INTERNAL_PLUGINS:
 256       if (!GetInternalPluginsDirectory(&cur))
 257         return false;
 258       break;
 259     case chrome::DIR_PEPPER_FLASH_PLUGIN:
 260       if (!GetInternalPluginsDirectory(&cur))
 261         return false;
 262       cur = cur.Append(kPepperFlashBaseDirectory);
 263       break;
 264     case chrome::DIR_COMPONENT_UPDATED_PEPPER_FLASH_PLUGIN:
 265       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 266         return false;
 267       cur = cur.Append(kPepperFlashBaseDirectory);
 268       break;
 269     case chrome::FILE_PEPPER_FLASH_SYSTEM_PLUGIN:
 270 #if defined(OS_WIN)
 271       if (!GetSystemFlashFilename(&cur, false))
 272         return false;
 273 #elif defined(OS_MACOSX) && !defined(OS_IOS)
 274       if (!GetLocalLibraryDirectory(&cur))
 275         return false;
 276       cur = cur.Append(kPepperFlashSystemBaseDirectory);
 277       cur = cur.Append(chrome::kPepperFlashPluginFilename);
 278 #else
 279       // Chrome on iOS does not supports PPAPI binaries, return false.
 280       // TODO(wfh): If Adobe release PPAPI binaries for Linux, add support here.
 281       return false;
 282 #endif
 283       break;
 284     case chrome::FILE_FLASH_SYSTEM_PLUGIN:
 285 #if defined(OS_WIN)
 286       if (!GetSystemFlashFilename(&cur, true))
 287         return false;
 288 #elif defined(OS_MACOSX) && !defined(OS_IOS)
 289       if (!GetLocalLibraryDirectory(&cur))
 290         return false;
 291       cur = cur.Append(kFlashSystemBaseDirectory);
 292       cur = cur.Append(kFlashSystemPluginName);
 293 #else
 294       // Chrome on other platforms does not supports system NPAPI binaries.
 295       return false;
 296 #endif
 297       break;
 298     case chrome::FILE_LOCAL_STATE:
 299       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 300         return false;
 301       cur = cur.Append(chrome::kLocalStateFilename);
 302       break;
 303     case chrome::FILE_RECORDED_SCRIPT:
 304       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 305         return false;
 306       cur = cur.Append(FILE_PATH_LITERAL("script.log"));
 307       break;
 308     case chrome::FILE_PEPPER_FLASH_PLUGIN:
 309       if (!PathService::Get(chrome::DIR_PEPPER_FLASH_PLUGIN, &cur))
 310         return false;
 311       cur = cur.Append(chrome::kPepperFlashPluginFilename);
 312       break;
 313     // TODO(teravest): Remove this case once the internal NaCl plugin is gone.
 314     // We currently need a path here to look up whether the plugin is disabled
 315     // and what its permissions are.
 316     case chrome::FILE_NACL_PLUGIN:
 317       if (!GetInternalPluginsDirectory(&cur))
 318         return false;
 319       cur = cur.Append(kInternalNaClPluginFileName);
 320       break;
 321     // PNaCl is currenly installable via the component updater or by being
 322     // simply built-in.  DIR_PNACL_BASE is used as the base directory for
 323     // installation via component updater.  DIR_PNACL_COMPONENT will be
 324     // the final location of pnacl, which is a subdir of DIR_PNACL_BASE.
 325     case chrome::DIR_PNACL_BASE:
 326       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 327         return false;
 328       cur = cur.Append(FILE_PATH_LITERAL("pnacl"));
 329       break;
 330     // Where PNaCl files are ultimately located.  The default finds the files
 331     // inside the InternalPluginsDirectory / build directory, as if it
 332     // was shipped along with chrome.  The value can be overridden
 333     // if it is installed via component updater.
 334     case chrome::DIR_PNACL_COMPONENT:
 335 #if defined(OS_MACOSX)
 336       // PNaCl really belongs in the InternalPluginsDirectory but actually
 337       // copying it there would result in the files also being shipped, which
 338       // we don't want yet. So for now, just find them in the directory where
 339       // they get built.
 340       if (!PathService::Get(base::DIR_EXE, &cur))
 341         return false;
 342       if (base::mac::AmIBundled()) {
 343         // If we're called from chrome, it's beside the app (outside the
 344         // app bundle), if we're called from a unittest, we'll already be
 345         // outside the bundle so use the exe dir.
 346         // exe_dir gave us .../Chromium.app/Contents/MacOS/Chromium.
 347         cur = cur.DirName();
 348         cur = cur.DirName();
 349         cur = cur.DirName();
 350       }
 351 #else
 352       if (!GetInternalPluginsDirectory(&cur))
 353         return false;
 354 #endif
 355       cur = cur.Append(FILE_PATH_LITERAL("pnacl"));
 356       break;
 357 #if defined(WIDEVINE_CDM_AVAILABLE) && defined(ENABLE_PEPPER_CDMS)
 358 #if defined(WIDEVINE_CDM_IS_COMPONENT)
 359     case chrome::DIR_COMPONENT_WIDEVINE_CDM:
 360       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 361         return false;
 362       cur = cur.Append(kWidevineCdmBaseDirectory);
 363       break;
 364 #endif  // defined(WIDEVINE_CDM_IS_COMPONENT)
 365     // TODO(xhwang): FILE_WIDEVINE_CDM_ADAPTER has different meanings.
 366     // In the component case, this is the source adapter. Otherwise, it is the
 367     // actual Pepper module that gets loaded.
 368     case chrome::FILE_WIDEVINE_CDM_ADAPTER:
 369       if (!GetInternalPluginsDirectory(&cur))
 370         return false;
 371       cur = cur.AppendASCII(kWidevineCdmAdapterFileName);
 372       break;
 373 #endif  // defined(WIDEVINE_CDM_AVAILABLE) && defined(ENABLE_PEPPER_CDMS)
 374     case chrome::FILE_RESOURCES_PACK:
 375 #if defined(OS_MACOSX) && !defined(OS_IOS)
 376       if (base::mac::AmIBundled()) {
 377         cur = base::mac::FrameworkBundlePath();
 378         cur = cur.Append(FILE_PATH_LITERAL("Resources"))
 379                  .Append(FILE_PATH_LITERAL("resources.pak"));
 380         break;
 381       }
 382 #elif defined(OS_ANDROID)
 383       if (!PathService::Get(ui::DIR_RESOURCE_PAKS_ANDROID, &cur))
 384         return false;
 385 #else
 386       // If we're not bundled on mac or Android, resources.pak should be next
 387       // to the binary (e.g., for unit tests).
 388       if (!PathService::Get(base::DIR_MODULE, &cur))
 389         return false;
 390 #endif
 391       cur = cur.Append(FILE_PATH_LITERAL("resources.pak"));
 392       break;
 393     case chrome::DIR_RESOURCES_EXTENSION:
 394       if (!PathService::Get(base::DIR_MODULE, &cur))
 395         return false;
 396       cur = cur.Append(FILE_PATH_LITERAL("resources"))
 397                .Append(FILE_PATH_LITERAL("extension"));
 398       break;
 399 #if defined(OS_CHROMEOS)
 400     case chrome::DIR_CHROMEOS_WALLPAPERS:
 401       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 402         return false;
 403       cur = cur.Append(FILE_PATH_LITERAL("wallpapers"));
 404       break;
 405     case chrome::DIR_CHROMEOS_WALLPAPER_THUMBNAILS:
 406       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 407         return false;
 408       cur = cur.Append(FILE_PATH_LITERAL("wallpaper_thumbnails"));
 409       break;
 410     case chrome::DIR_CHROMEOS_CUSTOM_WALLPAPERS:
 411       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 412         return false;
 413       cur = cur.Append(FILE_PATH_LITERAL("custom_wallpapers"));
 414       break;
 415 #endif
 416 #if defined(OS_LINUX) && defined(ENABLE_SUPERVISED_USERS)
 417     case chrome::DIR_SUPERVISED_USERS_DEFAULT_APPS:
 418       if (!PathService::Get(chrome::DIR_STANDALONE_EXTERNAL_EXTENSIONS, &cur))
 419         return false;
 420       cur = cur.Append(FILE_PATH_LITERAL("managed_users"));
 421       break;
 422 #endif
 423     // The following are only valid in the development environment, and
 424     // will fail if executed from an installed executable (because the
 425     // generated path won't exist).
 426     case chrome::DIR_GEN_TEST_DATA:
 427 #if defined(OS_ANDROID)
 428       // On Android, our tests don't have permission to write to DIR_MODULE.
 429       // gtest/test_runner.py pushes data to external storage.
 430       if (!PathService::Get(base::DIR_ANDROID_EXTERNAL_STORAGE, &cur))
 431         return false;
 432 #else
 433       if (!PathService::Get(base::DIR_MODULE, &cur))
 434         return false;
 435 #endif
 436       cur = cur.Append(FILE_PATH_LITERAL("test_data"));
 437       if (!base::PathExists(cur))  // We don't want to create this.
 438         return false;
 439       break;
 440     case chrome::DIR_TEST_DATA:
 441       if (!PathService::Get(base::DIR_SOURCE_ROOT, &cur))
 442         return false;
 443       cur = cur.Append(FILE_PATH_LITERAL("chrome"));
 444       cur = cur.Append(FILE_PATH_LITERAL("test"));
 445       cur = cur.Append(FILE_PATH_LITERAL("data"));
 446       if (!base::PathExists(cur))  // We don't want to create this.
 447         return false;
 448       break;
 449     case chrome::DIR_TEST_TOOLS:
 450       if (!PathService::Get(base::DIR_SOURCE_ROOT, &cur))
 451         return false;
 452       cur = cur.Append(FILE_PATH_LITERAL("chrome"));
 453       cur = cur.Append(FILE_PATH_LITERAL("tools"));
 454       cur = cur.Append(FILE_PATH_LITERAL("test"));
 455       if (!base::PathExists(cur))  // We don't want to create this
 456         return false;
 457       break;
 458 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_OPENBSD)
 459     case chrome::DIR_POLICY_FILES: {
 460 #if defined(GOOGLE_CHROME_BUILD)
 461       cur = base::FilePath(FILE_PATH_LITERAL("/etc/opt/chrome/policies"));
 462 #else
 463       cur = base::FilePath(FILE_PATH_LITERAL("/etc/chromium/policies"));
 464 #endif
 465       break;
 466     }
 467 #endif
 468 #if defined(OS_MACOSX) && !defined(OS_IOS)
 469     case chrome::DIR_USER_LIBRARY: {
 470       if (!GetUserLibraryDirectory(&cur))
 471         return false;
 472       if (!base::PathExists(cur))  // We don't want to create this.
 473         return false;
 474       break;
 475     }
 476     case chrome::DIR_USER_APPLICATIONS: {
 477       if (!GetUserApplicationsDirectory(&cur))
 478         return false;
 479       if (!base::PathExists(cur))  // We don't want to create this.
 480         return false;
 481       break;
 482     }
 483 #endif
 484 #if defined(OS_CHROMEOS) || (defined(OS_LINUX) && defined(CHROMIUM_BUILD)) || \
 485     (defined(OS_MACOSX) && !defined(OS_IOS))
 486     case chrome::DIR_USER_EXTERNAL_EXTENSIONS: {
 487       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 488         return false;
 489       cur = cur.Append(FILE_PATH_LITERAL("External Extensions"));
 490       break;
 491     }
 492 #endif
 493 #if defined(OS_LINUX)
 494     case chrome::DIR_STANDALONE_EXTERNAL_EXTENSIONS: {
 495       cur = base::FilePath(kFilepathSinglePrefExtensions);
 496       break;
 497     }
 498 #endif
 499     case chrome::DIR_EXTERNAL_EXTENSIONS:
 500 #if defined(OS_MACOSX) && !defined(OS_IOS)
 501       if (!chrome::GetGlobalApplicationSupportDirectory(&cur))
 502         return false;
 503
 504       cur = cur.Append(FILE_PATH_LITERAL("Google"))
 505                .Append(FILE_PATH_LITERAL("Chrome"))
 506                .Append(FILE_PATH_LITERAL("External Extensions"));
 507       create_dir = false;
 508 #else
 509       if (!PathService::Get(base::DIR_MODULE, &cur))
 510         return false;
 511
 512       cur = cur.Append(FILE_PATH_LITERAL("extensions"));
 513       create_dir = true;
 514 #endif
 515       break;
 516
 517     case chrome::DIR_DEFAULT_APPS:
 518 #if defined(OS_MACOSX)
 519       cur = base::mac::FrameworkBundlePath();
 520       cur = cur.Append(FILE_PATH_LITERAL("Default Apps"));
 521 #else
 522       if (!PathService::Get(chrome::DIR_APP, &cur))
 523         return false;
 524       cur = cur.Append(FILE_PATH_LITERAL("default_apps"));
 525 #endif
 526       break;
 527
 528 #if defined(OS_LINUX) || (defined(OS_MACOSX) && !defined(OS_IOS))
 529     case chrome::DIR_NATIVE_MESSAGING:
 530 #if defined(OS_MACOSX)
 531 #if defined(GOOGLE_CHROME_BUILD)
 532       cur = base::FilePath(FILE_PATH_LITERAL(
 533            "/Library/Google/Chrome/NativeMessagingHosts"));
 534 #else
 535       cur = base::FilePath(FILE_PATH_LITERAL(
 536           "/Library/Application Support/Chromium/NativeMessagingHosts"));
 537 #endif
 538 #else  // defined(OS_MACOSX)
 539 #if defined(GOOGLE_CHROME_BUILD)
 540       cur = base::FilePath(FILE_PATH_LITERAL(
 541           "/etc/opt/chrome/native-messaging-hosts"));
 542 #else
 543       cur = base::FilePath(FILE_PATH_LITERAL(
 544           "/etc/chromium/native-messaging-hosts"));
 545 #endif
 546 #endif  // !defined(OS_MACOSX)
 547       break;
 548
 549     case chrome::DIR_USER_NATIVE_MESSAGING:
 550       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 551         return false;
 552       cur = cur.Append(FILE_PATH_LITERAL("NativeMessagingHosts"));
 553       break;
 554 #endif  // defined(OS_LINUX) || (defined(OS_MACOSX) && !defined(OS_IOS))
 555 #if !defined(OS_ANDROID)
 556     case chrome::DIR_GLOBAL_GCM_STORE:
 557       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 558         return false;
 559       cur = cur.Append(kGCMStoreDirname);
 560       break;
 561 #endif  // !defined(OS_ANDROID)
 562 #if defined(OS_ANDROID)
 563     case chrome::DIR_OFFLINE_PAGE_METADATA:
 564       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
 565         return false;
 566       cur = cur.Append(kOfflinePageMetadataDirname);
 567       break;
 568 #endif  // defined(OS_ANDROID)
 569
 570     default:
 571       return false;
 572   }
 573
 574   // TODO(bauerb): http://crbug.com/259796
 575   base::ThreadRestrictions::ScopedAllowIO allow_io;
 576   if (create_dir && !base::PathExists(cur) &&
 577       !base::CreateDirectory(cur))
 578     return false;
 579
 580   *result = cur;
 581   return true;
 582 }
 583
 584 // This cannot be done as a static initializer sadly since Visual Studio will
 585 // eliminate this object file if there is no direct entry point into it.
 586 void RegisterPathProvider() {
 587   PathService::RegisterProvider(PathProvider, PATH_START, PATH_END);
 588 }
 589
 590 void SetInvalidSpecifiedUserDataDir(const base::FilePath& user_data_dir) {
 591   g_invalid_specified_user_data_dir.Get() = user_data_dir;
 592 }
 593
 594 const base::FilePath& GetInvalidSpecifiedUserDataDir() {
 595   return g_invalid_specified_user_data_dir.Get();
 596 }
 597
 598 }  // namespace chrome