[Presentation API] Adding a flag to disable gesture check for starting presentations

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 115 matching lines @@
 // Disable 3D inside of flapper.
 const char kDisableFlash3d[]                = "disable-flash-3d";
 
 // Disable Stage3D inside of flapper.
 const char kDisableFlashStage3d[]           = "disable-flash-stage3d";
 
 // Disable user gesture requirement for media playback.
 const char kDisableGestureRequirementForMediaPlayback[] =
     "disable-gesture-requirement-for-media-playback";
 
+// Disable user gesture requirement for presentation.
+const char kDisableGestureRequirementForPresentation[] =
+    "disable-gesture-requirement-for-presentation";
+
 // Disables GPU hardware acceleration.  If software renderer is not in place,
 // then the GPU process won't launch.
 const char kDisableGpu[]                    = "disable-gpu";
 
 // Prevent the compositor from using its GPU implementation.
 const char kDisableGpuCompositing[]         = "disable-gpu-compositing";
 
 // Disable proactive early init of GPU process.
 const char kDisableGpuEarlyInit[]           = "disable-gpu-early-init";
 
@@ skipping 877 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