Support for AudioContextOptions latencyHint.

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

Index: third_party/WebKit/Source/modules/webaudio/ConvolverNode.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/ConvolverNode.cpp b/third_party/WebKit/Source/modules/webaudio/ConvolverNode.cpp
index 36287ff52d8591ab93103fd18954a6e19c84f659..11d5715fdc831b45ca427e2011b85a8feac8e4d3 100644
--- a/third_party/WebKit/Source/modules/webaudio/ConvolverNode.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/ConvolverNode.cpp
@@ -158,7 +158,7 @@ double ConvolverHandler::tailTime() const {
   if (tryLocker.locked())
     return m_reverb
                ? m_reverb->impulseResponseLength() /
-                     static_cast<double>(sampleRate())
+                     static_cast<double>(context()->sampleRate())
                : 0;
   // Since we don't want to block the Audio Device thread, we return a large
   // value instead of trying to acquire the lock.
@@ -169,7 +169,8 @@ double ConvolverHandler::latencyTime() const {
   MutexTryLocker tryLocker(m_processLock);
   if (tryLocker.locked())
     return m_reverb
-               ? m_reverb->latencyFrames() / static_cast<double>(sampleRate())
+               ? m_reverb->latencyFrames() /
+                     static_cast<double>(context()->sampleRate())
                : 0;
   // Since we don't want to block the Audio Device thread, we return a large
   // value instead of trying to acquire the lock.