Initial implementation for sharing field trial state (win)

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 512 matching lines @@
 // Enables interaction with virtual reality devices.
 const char kEnableWebVR[] = "enable-webvr";
 
 // Enable rasterizer that writes directly to GPU memory associated with tiles.
 const char kEnableZeroCopy[]                = "enable-zero-copy";
 
 // Explicitly allows additional ports using a comma-separated list of port
 // numbers.
 const char kExplicitlyAllowedPorts[]        = "explicitly-allowed-ports";
 
+// Handle to the shared memory segment containing field trial state that is to
+// be shared between processes. The argument to this switch is the handle id
+// (pointer on Windows) as a string, followed by a comma, then the size of the
+// shared memory segment as a string.
+const char kFieldTrialHandle[] = "field-trial-handle";
+
 // Always use the Skia GPU backend for drawing layer tiles. Only valid with GPU
 // accelerated compositing + impl-side painting. Overrides the
 // kEnableGpuRasterization flag.
 const char kForceGpuRasterization[]        = "force-gpu-rasterization";
 
 // The number of multisample antialiasing samples for GPU rasterization.
 // Requires MSAA support on GPU to have an effect. 0 disables MSAA.
 const char kGpuRasterizationMSAASampleCount[] =
     "gpu-rasterization-msaa-sample-count";
 
@@ skipping 517 matching lines @@
 // the given directory. Used primarily to gather samples for IPC fuzzing.
 const char kIpcDumpDirectory[] = "ipc-dump-directory";
 
 // Specifies the testcase used by the IPC fuzzer.
 const char kIpcFuzzerTestcase[] = "ipc-fuzzer-testcase";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches