SupportsUserData and manifest handlers for Extension; use them for the Omnibox API.

chrome/common/extensions/api/omnibox/omnibox_handler.cc

Index: chrome/common/extensions/api/omnibox/omnibox_handler.cc
diff --git a/chrome/common/extensions/api/omnibox/omnibox_handler.cc b/chrome/common/extensions/api/omnibox/omnibox_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..3214ae8c6be3ea4f84a6f4042474d3637272d57e
--- /dev/null
+++ b/chrome/common/extensions/api/omnibox/omnibox_handler.cc
@@ -0,0 +1,60 @@
+// 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/api/omnibox/omnibox_handler.h"
+
+#include "base/memory/scoped_ptr.h"
+#include "base/string_util.h"
+#include "base/utf_string_conversions.h"
+#include "base/values.h"
+#include "chrome/common/extensions/extension.h"
+#include "chrome/common/extensions/extension_manifest_constants.h"
+
+namespace extensions {
+
+namespace {
+
+// Manifest keys.
+const char kKeyword[] = "keyword";
+
+}  // namespace
+
+// static
+const std::string& OmniboxInfo::GetKeyword(const Extension* extension) {
+  OmniboxInfo* info = static_cast<OmniboxInfo*>(
+      extension->GetUserData(extension_manifest_keys::kOmnibox));
+  return info ? info->keyword : EmptyString();
+}
+
+// static
+bool OmniboxInfo::IsVerboseInstallMessage(const Extension* extension) {
+  return !GetKeyword(extension).empty() ||
+      extension->browser_action_info() ||
+      (extension->page_action_info() &&
+       (extension->page_action_command() ||
+        !extension->page_action_info()->default_icon.empty()));
+}
+
+OmniboxHandler::OmniboxHandler() {
+}
+
+OmniboxHandler::~OmniboxHandler() {
+}
+
+bool OmniboxHandler::Parse(const base::Value* value,
+                           Extension* extension,
+                           string16* error) {
+  scoped_ptr<OmniboxInfo> info(new OmniboxInfo);
+  const DictionaryValue* dict = NULL;
+  if (!value->GetAsDictionary(&dict) ||
+      !dict->GetString(kKeyword, &info->keyword) ||
+      info->keyword.empty()) {
+    *error = ASCIIToUTF16(extension_manifest_errors::kInvalidOmniboxKeyword);
+    return false;
+  }
+  extension->SetUserData(extension_manifest_keys::kOmnibox, info.release());
+  return true;
+}
+
+}  // namespace extensions