file_manager: Move non-binding code to c/b/chromeos/file_manager

chrome/browser/chromeos/extensions/file_manager/fileapi_util.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 "chrome/browser/chromeos/extensions/file_manager/fileapi_util.h"
-
-#include "base/files/file_path.h"
-#include "chrome/browser/extensions/extension_service.h"
-#include "chrome/browser/extensions/extension_system.h"
-#include "chrome/browser/profiles/profile.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/site_instance.h"
-#include "content/public/browser/storage_partition.h"
-#include "net/base/escape.h"
-#include "url/gurl.h"
-#include "webkit/browser/fileapi/file_system_context.h"
-#include "webkit/common/fileapi/file_system_util.h"
-
-namespace file_manager {
-namespace util {
-
-fileapi::FileSystemContext* GetFileSystemContextForExtensionId(
-    Profile* profile,
-    const std::string& extension_id) {
-  GURL site = extensions::ExtensionSystem::Get(profile)->
-      extension_service()->GetSiteForExtensionId(extension_id);
-  return content::BrowserContext::GetStoragePartitionForSite(profile, site)->
-      GetFileSystemContext();
-}
-
-fileapi::FileSystemContext* GetFileSystemContextForRenderViewHost(
-    Profile* profile,
-    content::RenderViewHost* render_view_host) {
-  content::SiteInstance* site_instance = render_view_host->GetSiteInstance();
-  return content::BrowserContext::GetStoragePartition(profile, site_instance)->
-      GetFileSystemContext();
-}
-
-GURL ConvertRelativeFilePathToFileSystemUrl(const base::FilePath& relative_path,
-                                            const std::string& extension_id) {
-  GURL base_url = fileapi::GetFileSystemRootURI(
-      extensions::Extension::GetBaseURLFromExtensionId(extension_id),
-      fileapi::kFileSystemTypeExternal);
-  return GURL(base_url.spec() +
-              net::EscapeUrlEncodedData(relative_path.AsUTF8Unsafe(),
-                                        false));  // Space to %20 instead of +.
-}
-
-bool ConvertAbsoluteFilePathToFileSystemUrl(
-    Profile* profile,
-    const base::FilePath& absolute_path,
-    const std::string& extension_id,
-    GURL* url) {
-  base::FilePath relative_path;
-  if (!ConvertAbsoluteFilePathToRelativeFileSystemPath(
-          profile,
-          extension_id,
-          absolute_path,
-          &relative_path)) {
-    return false;
-  }
-  *url = ConvertRelativeFilePathToFileSystemUrl(relative_path, extension_id);
-  return true;
-}
-
-bool ConvertAbsoluteFilePathToRelativeFileSystemPath(
-    Profile* profile,
-    const std::string& extension_id,
-    const base::FilePath& absolute_path,
-    base::FilePath* virtual_path) {
-  ExtensionService* service =
-      extensions::ExtensionSystem::Get(profile)->extension_service();
-  // May be NULL during unit_tests.
-  if (!service)
-    return false;
-
-  // File browser APIs are meant to be used only from extension context, so the
-  // extension's site is the one in whose file system context the virtual path
-  // should be found.
-  GURL site = service->GetSiteForExtensionId(extension_id);
-  fileapi::ExternalFileSystemBackend* backend =
-      content::BrowserContext::GetStoragePartitionForSite(profile, site)->
-          GetFileSystemContext()->external_backend();
-  if (!backend)
-    return false;
-
-  // Find if this file path is managed by the external backend.
-  if (!backend->GetVirtualPath(absolute_path, virtual_path))
-    return false;
-
-  return true;
-}
-
-}  // namespace util
-}  // namespace file_manager