AudioParams with automations must process timelines

third_party/WebKit/Source/modules/webaudio/GainNode.cpp

Index: third_party/WebKit/Source/modules/webaudio/GainNode.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/GainNode.cpp b/third_party/WebKit/Source/modules/webaudio/GainNode.cpp
index fcb2410d95958e575ec171eb3ae76576bbb8e44f..7e1873afdfab009aa961ed0ae09742e036e347cf 100644
--- a/third_party/WebKit/Source/modules/webaudio/GainNode.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/GainNode.cpp
@@ -28,6 +28,7 @@
 #include "modules/webaudio/AudioNodeOutput.h"
 #include "modules/webaudio/GainOptions.h"
 #include "platform/audio/AudioBus.h"
+#include "platform/audio/AudioUtilities.h"
 
 namespace blink {
 
@@ -95,6 +96,15 @@ void GainHandler::process(size_t framesToProcess) {
   }
 }
 
+void GainHandler::processOnlyAudioParams(size_t framesToProcess) {
+  DCHECK(context()->isAudioThread());
+  DCHECK_LE(framesToProcess, AudioUtilities::kRenderQuantumFrames);
+
+  float values[AudioUtilities::kRenderQuantumFrames];
+
+  m_gain->calculateSampleAccurateValues(values, framesToProcess);
+}
+
 // FIXME: this can go away when we do mixing with gain directly in summing
 // junction of AudioNodeInput
 //