Convert some non-debug logging on content/common to debug logging.

content/common/child_process.cc

Index: content/common/child_process.cc
===================================================================
--- content/common/child_process.cc	(revision 107816)
+++ content/common/child_process.cc	(working copy)
@@ -96,10 +96,10 @@
   // TODO(playmobil): In the long term, overriding this flag doesn't seem
   // right, either use our own flag or open a dialog we can use.
   // This is just to ease debugging in the interim.
-  LOG(ERROR) << label
-             << " ("
-             << getpid()
-             << ") paused waiting for debugger to attach @ pid";
+  DLOG(ERROR) << label
+              << " ("
+              << getpid()
+              << ") paused waiting for debugger to attach @ pid";
   // Install a signal handler so that pause can be woken.
   struct sigaction sa;
   memset(&sa, 0, sizeof(sa));