Oilpan: HRTF dababase loader thread should be attached to Oilpan

Source/platform/audio/HRTFDatabaseLoader.cpp

Index: Source/platform/audio/HRTFDatabaseLoader.cpp
diff --git a/Source/platform/audio/HRTFDatabaseLoader.cpp b/Source/platform/audio/HRTFDatabaseLoader.cpp
index 4731ec45d3d6a8be06b0b257329d7dbbc731b987..79f1fc2c544c4e36485c7b5474a81d107b42b4e6 100644
--- a/Source/platform/audio/HRTFDatabaseLoader.cpp
+++ b/Source/platform/audio/HRTFDatabaseLoader.cpp
@@ -71,20 +71,23 @@ HRTFDatabaseLoader::HRTFDatabaseLoader(float sampleRate)
 HRTFDatabaseLoader::~HRTFDatabaseLoader()
 {
     ASSERT(isMainThread());
-
-    MutexLocker locker(m_lock);

[tkent, 2014/11/10 06:27:54]

Please mention this change in the CL description.

[haraken, 2014/11/10 06:37:10]

Done.

     waitForLoaderThreadCompletion();
-    m_hrtfDatabase.clear();
 }
 
 void HRTFDatabaseLoader::load()
 {
     ASSERT(!isMainThread());
-    MutexLocker locker(m_lock);
-    if (!m_hrtfDatabase) {
-        // Load the default HRTF database.
-        m_hrtfDatabase = HRTFDatabase::create(m_databaseSampleRate);
+    m_thread->attachGC();
+
+    {
+        MutexLocker locker(m_lock);
+        if (!m_hrtfDatabase) {
+            // Load the default HRTF database.
+            m_hrtfDatabase = HRTFDatabase::create(m_databaseSampleRate);
+        }
     }
+
+    m_thread->detachGC();
 }
 
 void HRTFDatabaseLoader::loadAsynchronously()
@@ -92,10 +95,10 @@ void HRTFDatabaseLoader::loadAsynchronously()
     ASSERT(isMainThread());
 
     MutexLocker locker(m_lock);
-    if (!m_hrtfDatabase && !m_databaseLoaderThread) {
+    if (!m_hrtfDatabase && !m_thread) {
         // Start the asynchronous database loading process.
-        m_databaseLoaderThread = adoptPtr(Platform::current()->createThread("HRTF database loader"));
-        m_databaseLoaderThread->postTask(new Task(WTF::bind(&HRTFDatabaseLoader::load, this)));
+        m_thread = WebThreadSupportingGC::create("HRTF database loader");
+        m_thread->postTask(new Task(WTF::bind(&HRTFDatabaseLoader::load, this)));
     }
 }
 
@@ -107,7 +110,7 @@ bool HRTFDatabaseLoader::isLoaded()
 
 void HRTFDatabaseLoader::waitForLoaderThreadCompletion()
 {
-    m_databaseLoaderThread.clear();
+    m_thread.clear();
 }
 
 } // namespace blink