Don't share Push API message payloads unless explicitly enabled.

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 "content/public/common/content_switches.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 
 namespace switches {
@@ skipping 348 matching lines @@
 
 // Enables compositor-accelerated touch-screen pinch gestures.
 const char kEnablePinch[]                   = "enable-pinch";
 
 // Make the values returned to window.performance.memory more granular and more
 // up to date in shared worker. Without this flag, the memory information is
 // still available, but it is bucketized and updated less frequently. This flag
 // also applys to workers.
 const char kEnablePreciseMemoryInfo[] = "enable-precise-memory-info";
 
+// Enables payloads for received push messages when using the W3C Push API.
+const char kEnablePushMessagePayload[] = "enable-push-message-payload";
+
 // Set options to cache V8 data. (off, preparse data, or code)
 const char kV8CacheOptions[] = "v8-cache-options";
 
 // Enables the CSS multicol implementation that uses the regions implementation.
 const char kEnableRegionBasedColumns[] =
     "enable-region-based-columns";
 
 // Replaces renderer-browser IPC channel with ChnanelMojo.
 const char kEnableRendererMojoChannel[] =
     "enable-renderer-mojo-channel";
@@ skipping 589 matching lines @@
   if (cmd_line->HasSwitch(kDisableWin32kRendererLockDown))
     return false;
   // Default.
   return group_name == "Enabled";
 }
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches