Add the "file_handlers" manifest key for platform apps to replace "intents".

chrome/common/extensions/extension_manifest_constants.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/common/extensions/extension_manifest_constants.h"
 
 namespace extension_manifest_keys {
 
 const char kAllFrames[] = "all_frames";
 const char kAltKey[] = "altKey";
@@ skipping 15 matching lines @@
 const char kDefaultLocale[] = "default_locale";
 const char kDescription[] = "description";
 const char kDevToolsPage[] = "devtools_page";
 const char kDisplayInLauncher[] = "display_in_launcher";
 const char kEventName[] = "event_name";
 const char kExcludeGlobs[] = "exclude_globs";
 const char kExcludeMatches[] = "exclude_matches";
 const char kFileAccessList[] = "file_access";
 const char kFileFilters[] = "file_filters";
 const char kFileBrowserHandlers[] = "file_browser_handlers";
+const char kFileHandlers[] = "file_handlers";
+const char kFileHandlerTitle[] = "title";
+const char kFileHandlerTypes[] = "types";
 const char kHomepageURL[] = "homepage_url";
 const char kIcons[] = "icons";
 const char kId[] = "id";
 const char kIncognito[] = "incognito";
 const char kIncludeGlobs[] = "include_globs";
 const char kInputComponents[] = "input_components";
 const char kIntentDisposition[] = "disposition";
 const char kIntentHref[] = "href";
 const char kIntentPath[] = "path";
 const char kIntents[] = "intents";
@@ skipping 191 matching lines @@
 const char kInvalidFileAccessList[] =
     "Invalid value for 'file_access'.";
 const char kInvalidFileAccessValue[] =
     "Invalid value for 'file_access[*]'.";
 const char kInvalidFileBrowserHandler[] =
     "Invalid value for 'file_browser_handers'.";
 const char kInvalidFileFiltersList[] =
     "Invalid value for 'file_filters'.";
 const char kInvalidFileFilterValue[] =
     "Invalid value for 'file_filters[*]'.";
+const char kInvalidFileHandlers[] =
+    "Invalid value for 'file_handlers'.";
+const char kInvalidFileHandlerTitle[] =
+    "Invalid value for 'file_handlers[*].title'.";
+const char kInvalidFileHandlerType[] =
+    "Invalid value for 'file_handlers[*].type'.";
+const char kInvalidFileHandlerTypeElement[] =
+    "Invalid value for 'file_handlers[*].type[*]'.";
 const char kInvalidGlob[] =
     "Invalid value for 'content_scripts[*].*[*]'.";
 const char kInvalidGlobList[] =
     "Invalid value for 'content_scripts[*].*'.";
 const char kInvalidHomepageURL[] =
     "Invalid value for homepage url: '[*]'.";
 const char kInvalidIconPath[] =
     "Invalid value for 'icons[\"*\"]'.";
 const char kInvalidIcons[] =
     "Invalid value for 'icons'.";
@@ skipping 257 matching lines @@
 const char kScriptBadgeTitleIgnored[] =
     "default_title specified in script_badge manifest section will not be "
     "used.";
 const char kWebRequestConflictsWithLazyBackground[] =
     "The 'webRequest' API cannot be used with event pages.";
 #if defined(OS_CHROMEOS)
 const char kIllegalPlugins[] =
     "Extensions cannot install plugins on Chrome OS";
 #endif
 }  // namespace extension_manifest_errors