Various OpenGLUI changes:

runtime/embedders/openglui/common/sound_handler.cc

Index: runtime/embedders/openglui/common/sound_handler.cc
===================================================================
--- runtime/embedders/openglui/common/sound_handler.cc	(revision 20570)
+++ runtime/embedders/openglui/common/sound_handler.cc	(working copy)
@@ -12,6 +12,7 @@
 
 SoundHandler::SoundHandler()
     : samples_() {
+  instance_ = this;
 }
 
 Sample* SoundHandler::GetSample(const char* path) {
@@ -20,6 +21,7 @@
        ++sp) {
     Sample* sample = (*sp);
     if (strcmp(sample->path(), path) == 0) {
+      LOGI("Returning cached sample %s", path);
       return sample;
     }
   }
@@ -30,6 +32,7 @@
     return NULL;
   }
   samples_.push_back(sample);
+  LOGI("Adding sample %s to cache", path);
   return sample;
 }