Plumb render view ID from audio-related code in renderer through IPCs to AudioRendererHost in brows…

content/renderer/renderer_webkitplatformsupport_impl.cc

Index: content/renderer/renderer_webkitplatformsupport_impl.cc
diff --git a/content/renderer/renderer_webkitplatformsupport_impl.cc b/content/renderer/renderer_webkitplatformsupport_impl.cc
index c9d6e412331a317c0060b013601065b36b647778..807e5ede8ea73e62e1976cccc28f0fc1603eba84 100644
--- a/content/renderer/renderer_webkitplatformsupport_impl.cc
+++ b/content/renderer/renderer_webkitplatformsupport_impl.cc
@@ -610,7 +610,11 @@ RendererWebKitPlatformSupportImpl::createAudioDevice(
       media::AudioParameters::AUDIO_PCM_LOW_LATENCY, layout,
       static_cast<int>(sampleRate), 16, bufferSize);
 
-  return new RendererWebAudioDeviceImpl(params, callback);
+  // TODO(miu): This method should be moved to RenderViewImpl.  First, a WebKit
+  // change must land: https://bugs.webkit.org/show_bug.cgi?id=92718
+  // For now, a stub:
+  static const int kUnknownRenderViewId = -1;
+  return new RendererWebAudioDeviceImpl(kUnknownRenderViewId, params, callback);
 }
 
 //------------------------------------------------------------------------------