Remove some platform specific stuff from views.

ui/app_list/search/history.cc

Index: ui/app_list/search/history.cc
diff --git a/ui/app_list/search/history.cc b/ui/app_list/search/history.cc
deleted file mode 100644
index 6c540246ff7b220f0b554406d77502a7b91eba59..0000000000000000000000000000000000000000
--- a/ui/app_list/search/history.cc
+++ /dev/null
@@ -1,59 +0,0 @@
-// 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 "ui/app_list/search/history.h"
-
-#include "base/strings/string_util.h"
-#include "base/strings/utf_string_conversions.h"
-#include "ui/app_list/search/history_data.h"
-#include "ui/app_list/search/history_data_store.h"
-#include "ui/app_list/search/tokenized_string.h"
-
-namespace app_list {
-
-namespace {
-
-// Normalize the given string by joining all its tokens with a space.
-std::string NormalizeString(const std::string& utf8) {
-  TokenizedString tokenized(base::UTF8ToUTF16(utf8));
-  return base::UTF16ToUTF8(JoinString(tokenized.tokens(), ' '));
-}
-
-}  // namespace
-
-History::History(scoped_refptr<HistoryDataStore> store)
-    : store_(store), data_loaded_(false) {
-  const size_t kMaxQueryEntries = 1000;
-  const size_t kMaxSecondaryQueries = 5;
-
-  data_.reset(
-      new HistoryData(store_.get(), kMaxQueryEntries, kMaxSecondaryQueries));
-  data_->AddObserver(this);
-}
-
-History::~History() {
-  data_->RemoveObserver(this);
-}
-
-bool History::IsReady() const {
-  return data_loaded_;
-}
-
-void History::AddLaunchEvent(const std::string& query,
-                             const std::string& result_id) {
-  DCHECK(IsReady());
-  data_->Add(NormalizeString(query), result_id);
-}
-
-scoped_ptr<KnownResults> History::GetKnownResults(
-    const std::string& query) const {
-  DCHECK(IsReady());
-  return data_->GetKnownResults(NormalizeString(query)).Pass();
-}
-
-void History::OnHistoryDataLoadedFromStore() {
-  data_loaded_ = true;
-}
-
-}  // namespace app_list