Use reference parameters when constructing IIRFilterNode's

third_party/WebKit/Source/modules/webaudio/IIRFilterNode.h

Index: third_party/WebKit/Source/modules/webaudio/IIRFilterNode.h
diff --git a/third_party/WebKit/Source/modules/webaudio/IIRFilterNode.h b/third_party/WebKit/Source/modules/webaudio/IIRFilterNode.h
index 0ec8f7ec34987da8aaab6e01ae342fb166fa9fd7..e16b8db569cddc57aa12c0823f443ddf2815a37d 100644
--- a/third_party/WebKit/Source/modules/webaudio/IIRFilterNode.h
+++ b/third_party/WebKit/Source/modules/webaudio/IIRFilterNode.h
@@ -20,8 +20,8 @@ class IIRFilterNode : public AudioNode {
 
  public:
   static IIRFilterNode* Create(BaseAudioContext&,
-                               const Vector<double> feedforward,
-                               const Vector<double> feedback,
+                               const Vector<double>& feedforward,
+                               const Vector<double>& feedback,
                                ExceptionState&);
 
   static IIRFilterNode* Create(BaseAudioContext*,
@@ -39,8 +39,8 @@ class IIRFilterNode : public AudioNode {
 
  private:
   IIRFilterNode(BaseAudioContext&,
-                const Vector<double> denominator,
-                const Vector<double> numerator);
+                const Vector<double>& denominator,
+                const Vector<double>& numerator);

[hongchan, 2017/04/10 19:47:31]

The who holds the actual copy of this vector?

[Raymond Toy, 2017/04/10 19:54:49]

v8 calls IIRFilterNode::Create with the actual coefficients.

[hongchan, 2017/04/10 21:05:11]

Acknowledged.

 
   IIRProcessor* IirProcessor() const;
 };