Introduce apps API target in //apps and move app.runtime API into it

chrome/browser/extensions/api/file_handlers/app_file_handler_util.cc

 // 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 "chrome/browser/extensions/api/file_handlers/app_file_handler_util.h"
 
+#include "apps/browser/file_handler_util.h"
 #include "base/file_util.h"
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/child_process_security_policy.h"
 #include "content/public/browser/render_process_host.h"
 #include "extensions/browser/extension_prefs.h"
 #include "net/base/mime_util.h"
 #include "webkit/browser/fileapi/isolated_context.h"
 #include "webkit/common/fileapi/file_system_mount_option.h"
 #include "webkit/common/fileapi/file_system_types.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #endif
 
+using apps::file_handler_util::GrantedFileEntry;
+
 namespace extensions {
 
 namespace app_file_handler_util {
 
 const char kInvalidParameters[] = "Invalid parameters";
 const char kSecurityError[] = "Security error";
 
 namespace {
 
 bool FileHandlerCanHandleFileWithExtension(
@@ skipping 308 matching lines @@
     const std::vector<base::FilePath>& paths,
     Profile* profile,
     bool is_directory,
     const base::Closure& on_success,
     const base::Callback<void(const base::FilePath&)>& on_failure) {
   scoped_refptr<WritableFileChecker> checker(new WritableFileChecker(
       paths, profile, is_directory, on_success, on_failure));
   checker->Check();
 }
 
-GrantedFileEntry::GrantedFileEntry() {}
-
 bool HasFileSystemWritePermission(const Extension* extension) {
   return extension->HasAPIPermission(APIPermission::kFileSystemWrite);
 }
 
 bool ValidateFileEntryAndGetPath(
     const std::string& filesystem_name,
     const std::string& filesystem_path,
     const content::RenderViewHost* render_view_host,
     base::FilePath* file_path,
     std::string* error) {
@@ skipping 39 matching lines @@
     *error = kInvalidParameters;
     return false;
   }
 
   return true;
 }
 
 }  // namespace app_file_handler_util
 
 }  // namespace extensions