Move ManifestHandlers to extensions/

chrome/common/extensions/manifest_handlers/requirements_handler.cc

-// Copyright (c) 2013 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_handlers/requirements_handler.h"
-
-#include "base/lazy_instance.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/values.h"
-#include "extensions/common/error_utils.h"
-#include "extensions/common/manifest_constants.h"
-
-namespace extensions {
-
-namespace keys = manifest_keys;
-namespace errors = manifest_errors;
-
-RequirementsInfo::RequirementsInfo(const Manifest* manifest)
-    : webgl(false),
-      css3d(false),
-      npapi(false) {
-  // Before parsing requirements from the manifest, automatically default the
-  // NPAPI plugin requirement based on whether it includes NPAPI plugins.
-  const base::ListValue* list_value = NULL;
-  npapi = manifest->GetList(keys::kPlugins, &list_value) &&
-          !list_value->empty();
-}
-
-RequirementsInfo::~RequirementsInfo() {
-}
-
-// static
-const RequirementsInfo& RequirementsInfo::GetRequirements(
-    const Extension* extension) {
-  RequirementsInfo* info = static_cast<RequirementsInfo*>(
-      extension->GetManifestData(keys::kRequirements));
-
-  // We should be guaranteed to have requirements, since they are parsed for all
-  // extension types.
-  CHECK(info);
-  return *info;
-}
-
-RequirementsHandler::RequirementsHandler() {
-}
-
-RequirementsHandler::~RequirementsHandler() {
-}
-
-const std::vector<std::string> RequirementsHandler::PrerequisiteKeys() const {
-  return SingleKey(keys::kPlugins);
-}
-
-const std::vector<std::string> RequirementsHandler::Keys() const {
-  return SingleKey(keys::kRequirements);
-}
-
-bool RequirementsHandler::AlwaysParseForType(Manifest::Type type) const {
-  return true;
-}
-
-bool RequirementsHandler::Parse(Extension* extension, string16* error) {
-  scoped_ptr<RequirementsInfo> requirements(
-      new RequirementsInfo(extension->manifest()));
-
-  if (!extension->manifest()->HasKey(keys::kRequirements)) {
-    extension->SetManifestData(keys::kRequirements, requirements.release());
-    return true;
-  }
-
-  const base::DictionaryValue* requirements_value = NULL;
-  if (!extension->manifest()->GetDictionary(keys::kRequirements,
-                                            &requirements_value)) {
-    *error = ASCIIToUTF16(errors::kInvalidRequirements);
-    return false;
-  }
-
-  for (base::DictionaryValue::Iterator iter(*requirements_value);
-       !iter.IsAtEnd();
-       iter.Advance()) {
-    const base::DictionaryValue* requirement_value;
-    if (!iter.value().GetAsDictionary(&requirement_value)) {
-      *error = ErrorUtils::FormatErrorMessageUTF16(
-          errors::kInvalidRequirement, iter.key());
-      return false;
-    }
-
-    if (iter.key() == "plugins") {
-      for (base::DictionaryValue::Iterator plugin_iter(*requirement_value);
-           !plugin_iter.IsAtEnd(); plugin_iter.Advance()) {
-        bool plugin_required = false;
-        if (!plugin_iter.value().GetAsBoolean(&plugin_required)) {
-          *error = ErrorUtils::FormatErrorMessageUTF16(
-              errors::kInvalidRequirement, iter.key());
-          return false;
-        }
-        if (plugin_iter.key() == "npapi") {
-          requirements->npapi = plugin_required;
-        } else {
-          *error = ErrorUtils::FormatErrorMessageUTF16(
-              errors::kInvalidRequirement, iter.key());
-          return false;
-        }
-      }
-    } else if (iter.key() == "3D") {
-      const base::ListValue* features = NULL;
-      if (!requirement_value->GetListWithoutPathExpansion("features",
-                                                          &features) ||
-          !features) {
-        *error = ErrorUtils::FormatErrorMessageUTF16(
-            errors::kInvalidRequirement, iter.key());
-        return false;
-      }
-
-      for (base::ListValue::const_iterator feature_iter = features->begin();
-           feature_iter != features->end(); ++feature_iter) {
-        std::string feature;
-        if ((*feature_iter)->GetAsString(&feature)) {
-          if (feature == "webgl") {
-            requirements->webgl = true;
-          } else if (feature == "css3d") {
-            requirements->css3d = true;
-          } else {
-            *error = ErrorUtils::FormatErrorMessageUTF16(
-                errors::kInvalidRequirement, iter.key());
-            return false;
-          }
-        }
-      }
-    } else {
-      *error = ASCIIToUTF16(errors::kInvalidRequirements);
-      return false;
-    }
-  }
-
-  extension->SetManifestData(keys::kRequirements, requirements.release());
-  return true;
-}
-
-}  // namespace extensions