bluetooth: Add a WebBluetooth command line flag.

content/shell/app/shell_main_delegate.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/shell/app/shell_main_delegate.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/cpu.h"
 #include "base/files/file.h"
@@ skipping 153 matching lines @@
                                    switches::kTouchEventsEnabled);
     command_line.AppendSwitchASCII(switches::kForceDeviceScaleFactor, "1.0");
 #if defined(OS_ANDROID)
     command_line.AppendSwitch(
         switches::kDisableGestureRequirementForMediaPlayback);
 #endif
 
     if (!command_line.HasSwitch(switches::kStableReleaseMode)) {
       command_line.AppendSwitch(
         switches::kEnableExperimentalWebPlatformFeatures);
+      // Only enable WebBluetooth during Layout Tests in non release mode.
+      command_line.AppendSwitch(switches::kEnableWebBluetooth);

[jochen (gone - plz use gerrit), 2015/05/15 06:11:33]

layout test related flags should go into the layout_test subdir. however, since
this is an experimental web platform feature, it's enabled for layout tests
anyways

[ortuno, 2015/05/15 16:31:14]

The purpose of this set of patches is to extract the WebBluetooth feature from
Experimental Web Platform Features so we need to enable the flag manually. Which
layout_test subdir?

     }
 
     if (!command_line.HasSwitch(switches::kEnableThreadedCompositing)) {
       command_line.AppendSwitch(switches::kDisableThreadedCompositing);
       command_line.AppendSwitch(cc::switches::kDisableThreadedAnimation);
       // Text blobs are normally disabled when kDisableImplSidePainting is
       // present to ensure correct LCD behavior, but for layout tests we want
       // them on because LCD is always suppressed.
       command_line.AppendSwitch(switches::kForceTextBlobs);
     }
@@ skipping 154 matching lines @@
 ContentRendererClient* ShellMainDelegate::CreateContentRendererClient() {
   renderer_client_.reset(base::CommandLine::ForCurrentProcess()->HasSwitch(
                              switches::kRunLayoutTest)
                              ? new LayoutTestContentRendererClient
                              : new ShellContentRendererClient);
 
   return renderer_client_.get();
 }
 
 }  // namespace content