Report if video capturing meets output protection requirement.

chrome/browser/media/desktop_capture_access_handler.cc

 // Copyright 2015 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/media/desktop_capture_access_handler.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 21 matching lines @@
 #include "extensions/common/constants.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/switches.h"
 #include "media/audio/audio_device_description.h"
 #include "net/base/url_util.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_capture_types.h"
 #include "ui/base/l10n/l10n_util.h"
 
 #if defined(OS_CHROMEOS)
 #include "ash/shell.h"
-#include "base/sha1.h"
 #endif  // defined(OS_CHROMEOS)
 
 using content::BrowserThread;
 
 namespace {
 
-bool IsExtensionWhitelistedForScreenCapture(
-    const extensions::Extension* extension) {
-  if (!extension)
-    return false;
-
-#if defined(OS_CHROMEOS)
-  std::string hash = base::SHA1HashString(extension->id());
-  std::string hex_hash = base::HexEncode(hash.c_str(), hash.length());
-
-  // crbug.com/446688
-  return hex_hash == "4F25792AF1AA7483936DE29C07806F203C7170A0" ||
-         hex_hash == "BD8781D757D830FC2E85470A1B6E8A718B7EE0D9" ||
-         hex_hash == "4AC2B6C63C6480D150DFDA13E4A5956EB1D0DDBB" ||
-         hex_hash == "81986D4F846CEDDDB962643FA501D1780DD441BB";
-#else
-  return false;
-#endif  // defined(OS_CHROMEOS)
-}
-
-bool IsBuiltInExtension(const GURL& origin) {
-  return
-      // Feedback Extension.
-      origin.spec() == "chrome-extension://gfdkimpbcpahaombhbimeihdjnejgicl/";
-}
-
 // Helper to get title of the calling application shown in the screen capture
 // notification.
 base::string16 GetApplicationTitle(content::WebContents* web_contents,
                                    const extensions::Extension* extension) {
   // Use extension name as title for extensions and host/origin for drive-by
   // web.
   std::string title;
   if (extension) {
     title = extension->name();
     return base::UTF8ToUTF16(title);
@@ skipping 150 matching lines @@
 void DesktopCaptureAccessHandler::ProcessScreenCaptureAccessRequest(
     content::WebContents* web_contents,
     const content::MediaStreamRequest& request,
     const content::MediaResponseCallback& callback,
     const extensions::Extension* extension) {
   content::MediaStreamDevices devices;
   std::unique_ptr<content::MediaStreamUI> ui;
 
   DCHECK_EQ(request.video_type, content::MEDIA_DESKTOP_VIDEO_CAPTURE);
 
+  UpdateExtensionTrusted(request, extension);
+
   bool loopback_audio_supported = false;
 #if defined(USE_CRAS) || defined(OS_WIN)
   // Currently loopback audio capture is supported only on Windows and ChromeOS.
   loopback_audio_supported = true;
 #endif
 
   bool component_extension = false;
   component_extension =
       extension && extension->location() == extensions::Manifest::COMPONENT;
 
@@ skipping 184 matching lines @@
   const bool check_audio_permission =
       !base::CommandLine::ForCurrentProcess()->HasSwitch(
           extensions::switches::kDisableDesktopCaptureAudio);
   const bool capture_audio =
       (check_audio_permission ? audio_permitted : true) && audio_requested &&
       audio_supported;
 
   ui = GetDevicesForDesktopCapture(&devices, media_id, capture_audio, true,
                                    GetApplicationTitle(web_contents, extension),
                                    base::UTF8ToUTF16(original_extension_name));
-
+  UpdateExtensionTrusted(request, extension);
   callback.Run(devices, content::MEDIA_DEVICE_OK, std::move(ui));
 }
 
-void DesktopCaptureAccessHandler::UpdateMediaRequestState(
-    int render_process_id,
-    int render_frame_id,
-    int page_request_id,
-    content::MediaStreamType stream_type,
-    content::MediaRequestState state) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  // Track desktop capture sessions.  Tracking is necessary to avoid unbalanced
-  // session counts since not all requests will reach MEDIA_REQUEST_STATE_DONE,
-  // but they will all reach MEDIA_REQUEST_STATE_CLOSING.
-  if (stream_type != content::MEDIA_DESKTOP_VIDEO_CAPTURE)
-    return;
-
-  if (state == content::MEDIA_REQUEST_STATE_DONE) {
-    DesktopCaptureSession session = {
-        render_process_id, render_frame_id, page_request_id};
-    desktop_capture_sessions_.push_back(session);
-  } else if (state == content::MEDIA_REQUEST_STATE_CLOSING) {
-    for (DesktopCaptureSessions::iterator it =
-             desktop_capture_sessions_.begin();
-         it != desktop_capture_sessions_.end(); ++it) {
-      if (it->render_process_id == render_process_id &&
-          it->render_frame_id == render_frame_id &&
-          it->page_request_id == page_request_id) {
-        desktop_capture_sessions_.erase(it);
-        break;
-      }
-    }
-  }
-}
-
-bool DesktopCaptureAccessHandler::IsCaptureInProgress() {
-  return desktop_capture_sessions_.size() > 0;
-}