Check media permissions through RenderFrameHostDelegate.

chrome/browser/media/media_capture_devices_dispatcher.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 "chrome/browser/media/media_capture_devices_dispatcher.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/prefs/pref_service.h"
@@ skipping 385 matching lines @@
           type == content::MEDIA_DEVICE_AUDIO_CAPTURE
               ? CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC
               : CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA,
           NO_RESOURCE_IDENTIFIER) == CONTENT_SETTING_ALLOW) {
     return true;
   }
 
   return false;
 }
 
+bool MediaCaptureDevicesDispatcher::CheckMediaAccessPermission(
+    content::WebContents* web_contents,
+    const GURL& security_origin,
+    content::MediaStreamType type,
+    const extensions::Extension* extension) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(type == content::MEDIA_DEVICE_AUDIO_CAPTURE ||
+         type == content::MEDIA_DEVICE_VIDEO_CAPTURE);
+
+  if (extension && (extension->is_platform_app() ||
+                    IsMediaRequestWhitelistedForExtension(extension))) {
+    return extension->permissions_data()->HasAPIPermission(
+        type == content::MEDIA_DEVICE_AUDIO_CAPTURE
+            ? extensions::APIPermission::kAudioCapture
+            : extensions::APIPermission::kVideoCapture);
+  }
+
+  Profile* profile =
+      Profile::FromBrowserContext(web_contents->GetBrowserContext());
+
+  if (CheckAllowAllMediaStreamContentForOrigin(profile, security_origin))
+    return true;
+
+  const char* policy_name = type == content::MEDIA_DEVICE_AUDIO_CAPTURE
+                                ? prefs::kAudioCaptureAllowed
+                                : prefs::kVideoCaptureAllowed;
+  const char* list_policy_name = type == content::MEDIA_DEVICE_AUDIO_CAPTURE
+                                     ? prefs::kAudioCaptureAllowedUrls
+                                     : prefs::kVideoCaptureAllowedUrls;
+  if (GetDevicePolicy(
+          profile, security_origin, policy_name, list_policy_name) ==
+      ALWAYS_ALLOW) {
+    return true;
+  }
+
+  // There's no secondary URL for these content types, hence duplicating
+  // |security_origin|.
+  if (profile->GetHostContentSettingsMap()->GetContentSetting(
+          security_origin,
+          security_origin,
+          type == content::MEDIA_DEVICE_AUDIO_CAPTURE
+              ? CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC
+              : CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA,
+          NO_RESOURCE_IDENTIFIER) == CONTENT_SETTING_ALLOW) {
+    return true;
+  }
+
+  return false;
+}
+
 void MediaCaptureDevicesDispatcher::ProcessDesktopCaptureAccessRequest(
     content::WebContents* web_contents,
     const content::MediaStreamRequest& request,
     const content::MediaResponseCallback& callback,
     const extensions::Extension* extension) {
   content::MediaStreamDevices devices;
   scoped_ptr<content::MediaStreamUI> ui;
 
   if (request.video_type != content::MEDIA_DESKTOP_VIDEO_CAPTURE) {
     callback.Run(devices, content::MEDIA_DEVICE_INVALID_STATE, ui.Pass());
@@ skipping 585 matching lines @@
 
 void MediaCaptureDevicesDispatcher::SetTestAudioCaptureDevices(
     const MediaStreamDevices& devices) {
   test_audio_devices_ = devices;
 }
 
 void MediaCaptureDevicesDispatcher::SetTestVideoCaptureDevices(
     const MediaStreamDevices& devices) {
   test_video_devices_ = devices;
 }