WebFonts: show a console message when an intervention is triggered

content/browser/renderer_host/render_process_host_impl.cc

 // Copyright 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 1401 matching lines @@
     switches::kEnableSlimmingPaintV2,
     switches::kEnableSmoothScrolling,
     switches::kEnableStatsTable,
     switches::kEnableThreadedCompositing,
     switches::kEnableTouchDragDrop,
     switches::kEnableUnsafeES3APIs,
     switches::kEnableUseZoomForDSF,
     switches::kEnableViewport,
     switches::kEnableVtune,
     switches::kEnableWebBluetooth,
+    switches::kEnableWebFontsInterventionTrigger,

[Kunihiko Sakamoto, 2016/05/18 08:39:51]

Is this necessary to show the console message?

[Takashi Toyoshima, 2016/05/18 09:06:56]

Yes for manual testing.
Actually, this was a bug that the flag wasn't propagated to renderers. I notice
this by manual testing this implementation.

Do you think it's better to split this?

[Kunihiko Sakamoto, 2016/05/18 09:11:01]

I see. No need to split this, but please mention that in the CL description.

     switches::kEnableWebGLDraftExtensions,
     switches::kEnableWebGLImageChromium,
     switches::kEnableWebVR,
     switches::kEnableWheelGestures,
     switches::kExplicitlyAllowedPorts,
     switches::kForceDeviceScaleFactor,
     switches::kForceDisplayList2dCanvas,
     switches::kForceOverlayFullscreenVideo,
     switches::kFullMemoryCrashReport,
     switches::kInertVisualViewport,
@@ skipping 1336 matching lines @@
 
     // Skip widgets in other processes.
     if (rvh->GetProcess()->GetID() != GetID())
       continue;
 
     rvh->OnWebkitPreferencesChanged();
   }
 }
 
 }  // namespace content