"Top Document Isolation" mode

content/public/common/content_switches.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 "build/build_config.h"
 #include "content/public/common/content_switches.h"
 
 namespace switches {
 
 // The number of MSAA samples for canvas2D. Requires MSAA support by GPU to
@@ skipping 569 matching lines @@
 // Makes all APIs reflect the layout viewport.
 const char kInertVisualViewport[]           = "inert-visual-viewport";
 
 // Run the GPU process as a thread in the browser process.
 const char kInProcessGPU[]                  = "in-process-gpu";
 
 // Overrides the timeout, in seconds, that a child process waits for a
 // connection from the browser before killing itself.
 const char kIPCConnectionTimeout[]          = "ipc-connection-timeout";
 
+// Groups all out-of-process iframes to a different process from the process
+// of the top document. This is a performance isolation mode.
+const char kIsolateTopDocument[] = "isolate-top-document";
+
 // Specifies the flags passed to JS engine
 const char kJavaScriptFlags[]               = "js-flags";
 
 // Load an NPAPI plugin from the specified path.
 const char kLoadPlugin[]                    = "load-plugin";
 
 // Logs GPU control list decisions when enforcing blacklist rules.
 const char kLogGpuControlListDecisions[]    = "log-gpu-control-list-decisions";
 
 // Sets the minimum log level. Valid values are from 0 to 3:
@@ skipping 444 matching lines @@
 const char kMemoryPressureThresholdsMb[] = "memory-pressure-thresholds-mb";
 
 // Enables the exporting of the tracing events to ETW. This is only supported on
 // Windows Vista and later.
 const char kTraceExportEventsToETW[] = "trace-export-events-to-etw";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches