Cleanup: move WebRTC related files from chrome/browser/media to chrome/browser/media/webrtc/

chrome/browser/media/media_stream_device_permissions.cc

-// 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 "chrome/browser/media/media_stream_device_permissions.h"
-
-#include <stddef.h>
-
-#include "base/values.h"
-#include "chrome/browser/profiles/profile.h"
-#include "components/content_settings/core/browser/host_content_settings_map.h"
-#include "components/content_settings/core/common/content_settings_pattern.h"
-#include "components/prefs/pref_service.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/common/origin_util.h"
-#include "extensions/common/constants.h"
-#include "url/gurl.h"
-
-MediaStreamDevicePolicy GetDevicePolicy(const Profile* profile,
-                                        const GURL& security_origin,
-                                        const char* policy_name,
-                                        const char* whitelist_policy_name) {
-  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
-
-  // If the security origin policy matches a value in the whitelist, allow it.
-  // Otherwise, check the |policy_name| master switch for the default behavior.
-
-  const PrefService* prefs = profile->GetPrefs();
-
-  const base::ListValue* list = prefs->GetList(whitelist_policy_name);
-  std::string value;
-  for (size_t i = 0; i < list->GetSize(); ++i) {
-    if (list->GetString(i, &value)) {
-      ContentSettingsPattern pattern =
-          ContentSettingsPattern::FromString(value);
-      if (pattern == ContentSettingsPattern::Wildcard()) {
-        DLOG(WARNING) << "Ignoring wildcard URL pattern: " << value;
-        continue;
-      }
-      DLOG_IF(ERROR, !pattern.IsValid()) << "Invalid URL pattern: " << value;
-      if (pattern.IsValid() && pattern.Matches(security_origin))
-        return ALWAYS_ALLOW;
-    }
-  }
-
-  // If a match was not found, check if audio capture is otherwise disallowed
-  // or if the user should be prompted.  Setting the policy value to "true"
-  // is equal to not setting it at all, so from hereon out, we will return
-  // either POLICY_NOT_SET (prompt) or ALWAYS_DENY (no prompt, no access).
-  if (!prefs->GetBoolean(policy_name))
-    return ALWAYS_DENY;
-
-  return POLICY_NOT_SET;
-}