Convert the non-debug logging in chrome/common to debug logging.

content/common/gpu/gpu_channel.cc

Index: content/common/gpu/gpu_channel.cc
===================================================================
--- content/common/gpu/gpu_channel.cc	(revision 106774)
+++ content/common/gpu/gpu_channel.cc	(working copy)
@@ -67,7 +67,7 @@
 
 bool GpuChannel::OnMessageReceived(const IPC::Message& message) {
   if (log_messages_) {
-    VLOG(1) << "received message @" << &message << " on channel @" << this
+    DVLOG(1) << "received message @" << &message << " on channel @" << this
             << " with type " << message.type();
   }
 
@@ -105,8 +105,8 @@
   // process. This could result in deadlock.
   DCHECK(!message->is_sync());
   if (log_messages_) {
-    VLOG(1) << "sending message @" << message << " on channel @" << this
-            << " with type " << message->type();
+    DVLOG(1) << "sending message @" << message << " on channel @" << this
+             << " with type " << message->type();
   }
 
   if (!channel_.get()) {