Flag and adapter class for software compositing.

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"
 
 namespace switches {
 
 // By default, file:// URIs cannot read other file:// URIs. This is an
 // override for developers who need the old behavior for testing.
@@ skipping 402 matching lines @@
 // testing changes locally. The argument is a list of name and value pairs,
 // separated by slashes. See FieldTrialList::CreateTrialsFromString() in
 // field_trial.h for details.
 const char kForceFieldTrials[]              = "force-fieldtrials";
 
 // Force renderer accessibility to be on instead of enabling it on demand when
 // a screen reader is detected. The disable-renderer-accessibility switch
 // overrides this if present.
 const char kForceRendererAccessibility[]    = "force-renderer-accessibility";
 
+// Force the compositor to use its software implementation instead of GL.
+const char kEnableSoftwareCompositingGLAdapter[] =
+    "enable-software-compositing-gl-adapter";
+
 // Passes gpu device_id from browser process to GPU process.
 const char kGpuDeviceID[]                   = "gpu-device-id";
 
 // Passes gpu driver_vendor from browser process to GPU process.
 const char kGpuDriverVendor[]               = "gpu-driver-vendor";
 
 // Passes gpu driver_version from browser process to GPU process.
 const char kGpuDriverVersion[]              = "gpu-driver-version";
 
 // Extra command line options for launching the GPU process (normally used
@@ skipping 281 matching lines @@
 // Sets the width and height above which a composited layer will get tiled.
 const char kMaxUntiledLayerWidth[]          = "max-untiled-layer-width";
 const char kMaxUntiledLayerHeight[]         = "max-untiled-layer-height";
 
 const char kEnableFixedPositionCreatesStackingContext[]
     = "enable-fixed-position-creates-stacking-context";
 const char kDisableFixedPositionCreatesStackingContext[]
     = "disable-fixed-position-creates-stacking-context";
 
 }  // namespace switches