Rename extension_manifest_keys namespace to extensions::manifest_keys.

chrome/common/extensions/manifest_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 "chrome/common/extensions/manifest.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/common/extensions/extension_manifest_constants.h"
 #include "chrome/common/extensions/features/feature.h"
 #include "chrome/common/extensions/features/simple_feature.h"
 #include "extensions/common/error_utils.h"
 #include "extensions/common/install_warning.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace errors = extension_manifest_errors;
-namespace keys = extension_manifest_keys;
+namespace keys = extensions::manifest_keys;
 
 namespace extensions {
 
 class ManifestTest : public testing::Test {
  public:
   ManifestTest() : default_value_("test") {}
 
  protected:
   void AssertType(Manifest* manifest, Manifest::Type type) {
     EXPECT_EQ(type, manifest->type());
@@ skipping 179 matching lines @@
   EXPECT_FALSE(manifest->Get(keys::kPageAction, &output));
   MutateManifest(
       &manifest, keys::kPlatformAppBackground, NULL);
 
   // Platform apps also can't have a "Commands" key.
   EXPECT_FALSE(manifest->HasKey(keys::kCommands));
   EXPECT_FALSE(manifest->Get(keys::kCommands, &output));
 };
 
 }  // namespace extensions