Added switch for bypassing protected media identifier permission

chrome/browser/media/protected_media_identifier_permission_context.cc

 // Copyright 2013 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/protected_media_identifier_permission_context.h"
 
 #include "base/command_line.h"
 #include "base/metrics/user_metrics.h"
+#include "base/strings/string_split.h"
 #include "build/build_config.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/permissions/permission_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
 #include "components/prefs/pref_service.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/web_contents.h"
+#include "media/base/media_switches.h"
+#include "net/base/url_util.h"
 #if defined(OS_CHROMEOS)
 #include <utility>
 
 #include "chrome/browser/chromeos/attestation/platform_verification_dialog.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/settings/cros_settings_names.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/user_prefs/user_prefs.h"
 #include "ui/views/widget/widget.h"
@@ skipping 66 matching lines @@
     return CONTENT_SETTING_BLOCK;
   }
 
   ContentSetting content_setting =
       PermissionContextBase::GetPermissionStatusInternal(
           render_frame_host, requesting_origin, embedding_origin);
   DCHECK(content_setting == CONTENT_SETTING_ALLOW ||
          content_setting == CONTENT_SETTING_BLOCK ||
          content_setting == CONTENT_SETTING_ASK);
 
+  // For automated testing of protected content - having a prompt that requires
+  // user intervention is problematic. If the domain has been whitelisted as
+  // safe - suppress the request and allow.
+  const base::CommandLine& command_line =
+      *base::CommandLine::ForCurrentProcess();
+  if (content_setting == CONTENT_SETTING_ASK &&
+      command_line.HasSwitch(
+          switches::kDisableInfobarForProtectedMediaIdentifierForDomain)) {
+    // Convert the switch value to a vector or URLs

[Joey Parrish, 2017/04/19 17:15:52]

typo: vector _of_ URLs

[Vaage, 2017/04/19 17:26:22]

Done.

+    std::vector<std::string> origins;
+    std::string whitelist = command_line.GetSwitchValueASCII(
+        switches::kDisableInfobarForProtectedMediaIdentifierForDomain);
+    for (const std::string& origin : base::SplitString(
+             whitelist, ",", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL)) {
+      origins.push_back(origin);
+    }
+
+    // Only if both requesting and embedding are allowed, allow the prompt to
+    // be skipped.
+    bool found_requesting = false;
+    bool found_embedding = false;
+    for (size_t i = 0; i < origins.size(); i++) {
+      found_requesting |= origins.at(i) == requesting_origin.host();
+      found_embedding |= origins.at(i) == embedding_origin.host();

[Joey Parrish, 2017/04/19 17:15:53]

Have you confirmed that host() includes the port?

[Vaage, 2017/04/19 17:26:22]

If I am correct, host() does not include information about the port. Do we want
to limit the port in addition to the domain?

[Joey Parrish, 2017/04/19 17:51:17]

Good question.  I thought so, but let's discuss offline and compare to similar
flags that already exist.

+    }
+
+    if (found_requesting && found_embedding) {
+      content_setting = CONTENT_SETTING_ALLOW;
+    }
+  }
+
   return content_setting;
 }
 
 void ProtectedMediaIdentifierPermissionContext::CancelPermissionRequest(
     content::WebContents* web_contents,
     const PermissionRequestID& id) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
 #if defined(OS_CHROMEOS)
   PendingRequestMap::iterator request = pending_requests_.find(web_contents);
@@ skipping 110 matching lines @@
       content_setting = CONTENT_SETTING_BLOCK;
       persist = true;
       break;
   }
 
   NotifyPermissionSet(
       id, requesting_origin, embedding_origin, callback,
       persist, content_setting);
 }
 #endif