Remove hyphenation code from Chromium.

content/browser/hyphenator/hyphenator_message_filter.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 "base/base_paths.h"
-#include "base/bind.h"
-#include "base/logging.h"
-#include "base/path_service.h"
-#include "base/strings/string16.h"
-#include "content/browser/hyphenator/hyphenator_message_filter.h"
-#include "content/common/hyphenator_messages.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/content_browser_client.h"
-#include "content/public/browser/render_process_host.h"
-
-namespace content {
-
-namespace {
-
-// A helper function that closes the specified file in the FILE thread. This
-// function may be called after the HyphenatorMessageFilter object that owns the
-// specified file is deleted, i.e. this function must not depend on the object.
-void CloseDictionary(base::PlatformFile file) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  base::ClosePlatformFile(file);
-}
-
-}  // namespace
-
-HyphenatorMessageFilter::HyphenatorMessageFilter(
-    RenderProcessHost* render_process_host)
-    : render_process_host_(render_process_host),
-      dictionary_file_(base::kInvalidPlatformFileValue),
-      weak_factory_(this) {
-}
-
-HyphenatorMessageFilter::~HyphenatorMessageFilter() {
-  // Post a FILE task that deletes the dictionary file. This message filter is
-  // usually deleted on the IO thread, which does not allow file operations.
-  if (dictionary_file_ != base::kInvalidPlatformFileValue) {
-    BrowserThread::PostTask(
-        BrowserThread::FILE,
-        FROM_HERE,
-        base::Bind(&CloseDictionary, dictionary_file_));
-  }
-}
-
-void HyphenatorMessageFilter::SetDictionaryBase(const base::FilePath& base) {
-  dictionary_base_ = base;
-}
-
-void HyphenatorMessageFilter::OverrideThreadForMessage(
-    const IPC::Message& message,
-    BrowserThread::ID* thread) {
-  if (message.type() == HyphenatorHostMsg_OpenDictionary::ID)
-    *thread = BrowserThread::UI;
-}
-
-bool HyphenatorMessageFilter::OnMessageReceived(
-    const IPC::Message& message,
-    bool* message_was_ok) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(HyphenatorMessageFilter,
-                           message,
-                           *message_was_ok)
-    IPC_MESSAGE_HANDLER(HyphenatorHostMsg_OpenDictionary, OnOpenDictionary)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP_EX()
-  return handled;
-}
-
-void HyphenatorMessageFilter::OnOpenDictionary(const string16& locale) {
-  if (dictionary_file_ != base::kInvalidPlatformFileValue) {
-    SendDictionary();
-    return;
-  }
-  BrowserThread::PostTaskAndReply(
-      BrowserThread::FILE,
-      FROM_HERE,
-      base::Bind(&HyphenatorMessageFilter::OpenDictionary, this, locale),
-      base::Bind(&HyphenatorMessageFilter::SendDictionary,
-                 weak_factory_.GetWeakPtr()));
-}
-
-void HyphenatorMessageFilter::OpenDictionary(const string16& locale) {
-  DCHECK(dictionary_file_ == base::kInvalidPlatformFileValue);
-
-  if (dictionary_base_.empty()) {
-    dictionary_base_ =
-        GetContentClient()->browser()->GetHyphenDictionaryDirectory();
-  }
-  std::string rule_file = locale.empty() ? "en-US" : UTF16ToASCII(locale);
-
-  // Currently, only en-US is hyphenated. This is a quick fix for
-  // http://crbug.com/167122.
-  // TODO(groby): The proper fix entails validating if locale is a properly
-  // formatted locale string, but knowledge about valid locales currently
-  // resides in chrome, not content.
-  if (rule_file != "en-US")
-    return;
-  rule_file.append("-1-0.dic");
-  base::FilePath rule_path = dictionary_base_.AppendASCII(rule_file);
-  dictionary_file_ = base::CreatePlatformFile(
-      rule_path,
-      base::PLATFORM_FILE_READ | base::PLATFORM_FILE_OPEN,
-      NULL, NULL);
-}
-
-void HyphenatorMessageFilter::SendDictionary() {
-  IPC::PlatformFileForTransit file = IPC::InvalidPlatformFileForTransit();
-  if (dictionary_file_ != base::kInvalidPlatformFileValue) {
-    file = IPC::GetFileHandleForProcess(
-        dictionary_file_,
-        render_process_host_->GetHandle(),
-        false);
-  }
-  Send(new HyphenatorMsg_SetDictionary(file));
-}
-
-}  // namespace content