Move the rest of extension_manifest_constants to top-level extensions/

chrome/common/extensions/manifest_tests/extension_manifests_platformapp_unittest.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 "base/command_line.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/memory/linked_ptr.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/csp_handler.h"
-#include "chrome/common/extensions/extension_manifest_constants.h"
 #include "chrome/common/extensions/incognito_handler.h"
 #include "chrome/common/extensions/manifest_handlers/app_isolation_info.h"
 #include "chrome/common/extensions/manifest_tests/extension_manifest_test.h"
 #include "extensions/common/error_utils.h"
+#include "extensions/common/manifest_constants.h"
 #include "extensions/common/switches.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-namespace errors = extension_manifest_errors;
+namespace extensions {
 
-namespace extensions {
+namespace errors = manifest_errors;
 
 class PlatformAppsManifestTest : public ExtensionManifestTest {
 };
 
 TEST_F(PlatformAppsManifestTest, PlatformApps) {
   scoped_refptr<Extension> extension =
       LoadAndExpectSuccess("init_valid_platform_app.json");
   EXPECT_TRUE(AppIsolationInfo::HasIsolatedStorage(extension.get()));
   EXPECT_TRUE(IncognitoInfo::IsSplitMode(extension.get()));
 
@@ skipping 107 matching lines @@
 
   // Now try again with the experimental flag set.
   CommandLine::ForCurrentProcess()->AppendSwitch(
       switches::kEnableExperimentalExtensionApis);
   for (size_t i = 0; i < arraysize(kPlatformAppExperimentalApis); ++i) {
     LoadAndExpectSuccess(Manifest(manifests[i].get(), ""));
   }
 }
 
 }  // namespace extensions