Move the PluginDataRemover class to content, and remove the chrome pieces from it. This class rea...

chrome/browser/plugin_data_remover.cc

-// Copyright (c) 2011 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/plugin_data_remover.h"
-
-#include "base/bind.h"
-#include "base/command_line.h"
-#include "base/message_loop_proxy.h"
-#include "base/metrics/histogram.h"
-#include "base/synchronization/waitable_event.h"
-#include "base/version.h"
-#include "chrome/browser/plugin_prefs.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/common/chrome_switches.h"
-#include "content/browser/plugin_service.h"
-#include "content/common/plugin_messages.h"
-#include "content/public/browser/browser_thread.h"
-#include "webkit/plugins/npapi/plugin_group.h"
-
-#if defined(OS_POSIX)
-#include "ipc/ipc_channel_posix.h"
-#endif
-
-using content::BrowserThread;
-
-namespace {
-
-const char kFlashMimeType[] = "application/x-shockwave-flash";
-// The minimum Flash Player version that implements NPP_ClearSiteData.
-const char kMinFlashVersion[] = "10.3";
-const int64 kRemovalTimeoutMs = 10000;
-const uint64 kClearAllData = 0;
-
-}  // namespace
-
-PluginDataRemover::PluginDataRemover(Profile* profile)
-    : mime_type_(kFlashMimeType),
-      is_removing_(false),
-      context_(profile->GetResourceContext()),
-      event_(new base::WaitableEvent(true, false)),
-      channel_(NULL) {
-}
-
-PluginDataRemover::~PluginDataRemover() {
-  DCHECK(!is_removing_);
-  if (channel_)
-    BrowserThread::DeleteSoon(BrowserThread::IO, FROM_HERE, channel_);
-}
-
-base::WaitableEvent* PluginDataRemover::StartRemoving(base::Time begin_time) {
-  DCHECK(!is_removing_);
-  remove_start_time_ = base::Time::Now();
-  begin_time_ = begin_time;
-
-  is_removing_ = true;
-
-  // Balanced in OnChannelOpened or OnError. Exactly one them will eventually be
-  // called, so we need to keep this object around until then.
-  AddRef();
-  PluginService::GetInstance()->OpenChannelToNpapiPlugin(
-      0, 0, GURL(), GURL(), mime_type_, this);
-
-  BrowserThread::PostDelayedTask(
-      BrowserThread::IO,
-      FROM_HERE,
-      base::Bind(&PluginDataRemover::OnTimeout, this),
-      kRemovalTimeoutMs);
-
-  return event_.get();
-}
-
-void PluginDataRemover::Wait() {
-  base::Time start_time(base::Time::Now());
-  if (is_removing_)
-    event_->Wait();
-  UMA_HISTOGRAM_TIMES("ClearPluginData.wait_at_shutdown",
-                      base::Time::Now() - start_time);
-  UMA_HISTOGRAM_TIMES("ClearPluginData.time_at_shutdown",
-                      base::Time::Now() - remove_start_time_);
-}
-
-int PluginDataRemover::ID() {
-  // Generate a unique identifier for this PluginProcessHostClient.
-  return ChildProcessInfo::GenerateChildProcessUniqueId();
-}
-
-bool PluginDataRemover::OffTheRecord() {
-  return false;
-}
-
-const content::ResourceContext& PluginDataRemover::GetResourceContext() {
-  return context_;
-}
-
-void PluginDataRemover::SetPluginInfo(
-    const webkit::WebPluginInfo& info) {
-}
-
-void PluginDataRemover::OnFoundPluginProcessHost(
-    PluginProcessHost* host) {
-}
-
-void PluginDataRemover::OnSentPluginChannelRequest() {
-}
-
-void PluginDataRemover::OnChannelOpened(const IPC::ChannelHandle& handle) {
-  ConnectToChannel(handle);
-  // Balancing the AddRef call in StartRemoving.
-  Release();
-}
-
-void PluginDataRemover::ConnectToChannel(const IPC::ChannelHandle& handle) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-
-  // If we timed out, don't bother connecting.
-  if (!is_removing_)
-    return;
-
-  DCHECK(!channel_);
-  channel_ = new IPC::Channel(handle, IPC::Channel::MODE_CLIENT, this);
-  if (!channel_->Connect()) {
-    NOTREACHED() << "Couldn't connect to plugin";
-    SignalDone();
-    return;
-  }
-
-  if (!channel_->Send(new PluginMsg_ClearSiteData(std::string(),
-                                                  kClearAllData,
-                                                  begin_time_))) {
-    NOTREACHED() << "Couldn't send ClearSiteData message";
-    SignalDone();
-    return;
-  }
-}
-
-void PluginDataRemover::OnError() {
-  LOG(DFATAL) << "Couldn't open plugin channel";
-  SignalDone();
-  // Balancing the AddRef call in StartRemoving.
-  Release();
-}
-
-void PluginDataRemover::OnClearSiteDataResult(bool success) {
-  LOG_IF(ERROR, !success) << "ClearSiteData returned error";
-  UMA_HISTOGRAM_TIMES("ClearPluginData.time",
-                      base::Time::Now() - remove_start_time_);
-  SignalDone();
-}
-
-void PluginDataRemover::OnTimeout() {
-  LOG_IF(ERROR, is_removing_) << "Timed out";
-  SignalDone();
-}
-
-bool PluginDataRemover::OnMessageReceived(const IPC::Message& msg) {
-  IPC_BEGIN_MESSAGE_MAP(PluginDataRemover, msg)
-    IPC_MESSAGE_HANDLER(PluginHostMsg_ClearSiteDataResult,
-                        OnClearSiteDataResult)
-    IPC_MESSAGE_UNHANDLED_ERROR()
-  IPC_END_MESSAGE_MAP()
-
-  return true;
-}
-
-void PluginDataRemover::OnChannelError() {
-  if (is_removing_) {
-    NOTREACHED() << "Channel error";
-    SignalDone();
-  }
-}
-
-void PluginDataRemover::SignalDone() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  if (!is_removing_)
-    return;
-  is_removing_ = false;
-  event_->Signal();
-}
-
-// static
-bool PluginDataRemover::IsSupported(PluginPrefs* plugin_prefs) {
-  bool allow_wildcard = false;
-  std::vector<webkit::WebPluginInfo> plugins;
-  PluginService::GetInstance()->GetPluginInfoArray(
-      GURL(), kFlashMimeType, allow_wildcard, &plugins, NULL);
-  std::vector<webkit::WebPluginInfo>::iterator plugin = plugins.begin();
-  if (plugin == plugins.end())
-    return false;
-  scoped_ptr<Version> version(
-      webkit::npapi::PluginGroup::CreateVersionFromString(plugin->version));
-  scoped_ptr<Version> min_version(Version::GetVersionFromString(
-      CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-          switches::kMinClearSiteDataFlashVersion)));
-  if (!min_version.get())
-    min_version.reset(Version::GetVersionFromString(kMinFlashVersion));
-  return plugin_prefs->IsPluginEnabled(*plugin) &&
-         version.get() &&
-         min_version->CompareTo(*version) == -1;
-}