blob: baabcf746df0bc5a1f499815ca0898d56e7078d0 [file] [log] [blame]
// Copyright 2014 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 <map>
#include <vector>
#include "base/basictypes.h"
#include "base/memory/weak_ptr.h"
#include "base/strings/string16.h"
#include "components/metrics/metrics_provider.h"
#include "content/public/browser/browser_child_process_observer.h"
namespace base {
class FilePath;
namespace content {
struct WebPluginInfo;
class PrefRegistrySimple;
class PrefService;
// PluginMetricsProvider is responsible for adding out plugin information to
// the UMA proto.
class PluginMetricsProvider : public metrics::MetricsProvider,
public content::BrowserChildProcessObserver {
explicit PluginMetricsProvider(PrefService* local_state);
virtual ~PluginMetricsProvider();
// Fetches plugin information data asynchronously and calls |done_callback|
// when done.
void GetPluginInformation(const base::Closure& done_callback);
// metrics::MetricsDataProvider:
virtual void ProvideSystemProfileMetrics(
metrics::SystemProfileProto* system_profile_proto) OVERRIDE;
virtual void ProvideStabilityMetrics(
metrics::SystemProfileProto* system_profile_proto) OVERRIDE;
virtual void RecordCurrentState() OVERRIDE;
// Notifies the provider about an error loading the plugin at |plugin_path|.
void LogPluginLoadingError(const base::FilePath& plugin_path);
// Sets this provider's list of plugins, exposed for testing.
void SetPluginsForTesting(const std::vector<content::WebPluginInfo>& plugins);
// Returns true if process of type |type| should be counted as a plugin
// process, and false otherwise.
static bool IsPluginProcess(int process_type);
// Registers local state prefs used by this class.
static void RegisterPrefs(PrefRegistrySimple* registry);
struct ChildProcessStats;
// Receives the plugin list from the PluginService and calls |done_callback|.
void OnGotPlugins(const base::Closure& done_callback,
const std::vector<content::WebPluginInfo>& plugins);
// Returns reference to ChildProcessStats corresponding to |data|.
ChildProcessStats& GetChildProcessStats(
const content::ChildProcessData& data);
// content::BrowserChildProcessObserver:
virtual void BrowserChildProcessHostConnected(
const content::ChildProcessData& data) OVERRIDE;
virtual void BrowserChildProcessCrashed(
const content::ChildProcessData& data) OVERRIDE;
virtual void BrowserChildProcessInstanceCreated(
const content::ChildProcessData& data) OVERRIDE;
PrefService* local_state_;
// The list of plugins which was retrieved on the file thread.
std::vector<content::WebPluginInfo> plugins_;
// Buffer of child process notifications for quick access.
std::map<base::string16, ChildProcessStats> child_process_stats_buffer_;
base::WeakPtrFactory<PluginMetricsProvider> weak_ptr_factory_;