Implement people search.

chrome/browser/ui/app_list/search/webstore_cache.cc

-// Copyright 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/browser/ui/app_list/search/webstore_cache.h"
-
-#include "base/values.h"
-
-namespace app_list {
-namespace {
-
-const int kWebstoreCacheMaxSize = 100;
-const int kWebstoreCacheTimeLimitInMinutes = 1;
-
-}  // namespace
-
-void WebstoreCache::CacheDeletor::operator()(WebstoreCache::Payload& payload) {
-  delete payload.second;
-}
-
-WebstoreCache::WebstoreCache()
-    : cache_(kWebstoreCacheMaxSize) {
-}
-
-WebstoreCache::~WebstoreCache() {
-}
-
-const base::DictionaryValue* WebstoreCache::Get(const std::string& query) {
-  Cache::iterator iter = cache_.Get(query);
-  if (iter != cache_.end()) {
-    if (base::Time::Now() - iter->second.first <=
-        base::TimeDelta::FromMinutes(kWebstoreCacheTimeLimitInMinutes)) {
-      return iter->second.second;
-    } else {
-      cache_.Erase(iter);
-    }
-  }
-  return NULL;
-}
-
-void WebstoreCache::Put(const std::string& query,
-                        scoped_ptr<base::DictionaryValue> result) {
-  if (result)
-    cache_.Put(query, std::make_pair(base::Time::Now(), result.release()));
-}
-
-}  // namespace app_list