Enable CSP by default for extensions with manifest_version >= 2.

chrome/common/extensions/extension_constants.cc

 // Copyright (c) 2011 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_constants.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/string_util.h"
@@ skipping 35 matching lines @@
 const char* kJs = "js";
 const char* kKeycode = "keyCode";
 const char* kLanguage = "language";
 const char* kLaunch = "app.launch";
 const char* kLaunchContainer = "app.launch.container";
 const char* kLaunchHeight = "app.launch.height";
 const char* kLaunchLocalPath = "app.launch.local_path";
 const char* kLaunchWebURL = "app.launch.web_url";
 const char* kLaunchWidth = "app.launch.width";
 const char* kLayouts = "layouts";
+const char* kManifestVersion = "manifest_version";
 const char* kMatches = "matches";
 const char* kMinimumChromeVersion = "minimum_chrome_version";
 const char* kName = "name";
 const char* kNaClModules = "nacl_modules";
 const char* kNaClModulesMIMEType = "mime_type";
 const char* kNaClModulesPath = "path";
 const char* kOfflineEnabled = "offline_enabled";
 const char* kOmnibox = "omnibox";
 const char* kOmniboxKeyword = "omnibox.keyword";
 const char* kOptionalPermissions = "optional_permissions";
@@ skipping 198 matching lines @@
 const char* kInvalidLaunchLocalPath =
     "Invalid value for 'app.launch.local_path'.";
 const char* kInvalidLaunchWebURL =
     "Invalid value for 'app.launch.web_url'.";
 const char* kInvalidLaunchWidth =
     "Invalid value for 'app.launch.width'.";
 const char* kInvalidLaunchWidthContainer =
     "Invalid container type for 'app.launch.width'.";
 const char* kInvalidManifest =
     "Manifest file is invalid.";
+const char* kInvalidManifestVersion =
+    "Invalid value for 'manifest_version'.";
 const char* kInvalidMatch =
     "Invalid value for 'content_scripts[*].matches[*]': *";
 const char* kInvalidMatchCount =
     "Invalid value for 'content_scripts[*].matches'. There must be at least "
     "one match specified.";
 const char* kInvalidMatches =
     "Required value 'content_scripts[*].matches' is missing or invalid.";
 const char* kInvalidMinimumChromeVersion =
     "Invalid value for 'minimum_chrome_version'.";
 const char* kInvalidName =
@@ skipping 199 matching lines @@
 const char* kCloudPrintAppId = "mfehgcgbbipciphmccgaenjidiccnmng";
 const char* kAppsPromoHistogram = "Extensions.AppsPromo";
 const char* kAppLaunchHistogram = "Extensions.AppLaunch";
 #if defined(OS_CHROMEOS)
 const char* kAccessExtensionPath =
     "/usr/share/chromeos-assets/accessibility/extensions";
 const char* kChromeVoxDirectoryName = "access_chromevox";
 #endif
 
 }