Restore debugging prints for AudioNode refs

In enabling oilpan for WebAudio, some debugging prints for AudioNode's
were accidentally removed. This restores them and cleans up some of
the messages, and also prints out the current node count. The node
count is in lieu of the m_normalRefCount that was removed in favor of
the standard ref counting mechanism.

The prints are very useful for investigating issues when nodes are not
being destroyed.

BUG=

Review URL: https://codereview.chromium.org/583573006

git-svn-id: svn://svn.chromium.org/blink/trunk@182289 bbb929c8-8fbe-4397-9dbb-9b2b20218538

Source/modules/webaudio/AudioNode.cpp

@@ -74,7 +74,8 @@ AudioNode::~AudioNode()
     --s_instanceCount;
 #if DEBUG_AUDIONODE_REFERENCES
     --s_nodeCount[nodeType()];
-    fprintf(stderr, "%p: %d: AudioNode::~AudioNode() %d\n", this, nodeType(), m_connectionRefCount);
+    fprintf(stderr, "%p: %2d: AudioNode::~AudioNode() %d [%d]\n",
+        this, nodeType(), m_connectionRefCount, s_nodeCount[nodeType()]);
 #endif
 }
 
@@ -151,6 +152,7 @@ void AudioNode::setNodeType(NodeType type)
 
 #if DEBUG_AUDIONODE_REFERENCES
     ++s_nodeCount[type];
+    fprintf(stderr, "%p: %2d: AudioNode::AudioNode [%3d]\n", this, nodeType(), s_nodeCount[nodeType()]);
 #endif
 }
 
@@ -482,6 +484,11 @@ void AudioNode::disableOutputsIfNecessary()
 void AudioNode::makeConnection()
 {
     atomicIncrement(&m_connectionRefCount);
+
+#if DEBUG_AUDIONODE_REFERENCES
+    fprintf(stderr, "%p: %2d: AudioNode::ref   %3d [%3d]\n",
+        this, nodeType(), m_connectionRefCount, s_nodeCount[nodeType()]);
+#endif
     // See the disabling code in disableOutputsIfNecessary(). This handles
     // the case where a node is being re-connected after being used at least
     // once and disconnected. In this case, we need to re-enable.
@@ -520,6 +527,12 @@ void AudioNode::breakConnection()
 void AudioNode::breakConnectionWithLock()
 {
     atomicDecrement(&m_connectionRefCount);
+
+#if DEBUG_AUDIONODE_REFERENCES
+    fprintf(stderr, "%p: %2d: AudioNode::deref %3d [%3d]\n",
+        this, nodeType(), m_connectionRefCount, s_nodeCount[nodeType()]);
+#endif
+
     if (!m_connectionRefCount)
         disableOutputsIfNecessary();
 }
@@ -537,7 +550,7 @@ void AudioNode::printNodeCounts()
     fprintf(stderr, "===========================\n");
 
     for (unsigned i = 0; i < NodeTypeEnd; ++i)
-        fprintf(stderr, "%d: %d\n", i, s_nodeCount[i]);
+        fprintf(stderr, "%2d: %d\n", i, s_nodeCount[i]);
 
     fprintf(stderr, "===========================\n\n\n");
 }