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

content/common/process_watcher_mac.cc

Index: content/common/process_watcher_mac.cc
===================================================================
--- content/common/process_watcher_mac.cc	(revision 107816)
+++ content/common/process_watcher_mac.cc	(working copy)
@@ -22,7 +22,7 @@
 void BlockingReap(pid_t child) {
   const pid_t result = HANDLE_EINTR(waitpid(child, NULL, 0));
   if (result == -1) {
-    PLOG(ERROR) << "waitpid(" << child << ", NULL, 0)";
+    DPLOG(ERROR) << "waitpid(" << child << ", NULL, 0)";
   }
 }
 
@@ -77,7 +77,7 @@
 
   int kq = HANDLE_EINTR(kqueue());
   if (kq == -1) {
-    PLOG(ERROR) << "kqueue()";
+    DPLOG(ERROR) << "kqueue()";
   } else {
     file_util::ScopedFD auto_close_kq(&kq);
 
@@ -87,7 +87,7 @@
 
     if (result == -1) {
       if (errno != ESRCH) {
-        PLOG(ERROR) << "kevent (setup " << child << ")";
+        DPLOG(ERROR) << "kevent (setup " << child << ")";
       } else {
         // At this point, one of the following has occurred:
         // 1. The process has died but has not yet been reaped.
@@ -129,10 +129,10 @@
       }
 
       if (result == -1) {
-        PLOG(ERROR) << "kevent (wait " << child << ")";
+        DPLOG(ERROR) << "kevent (wait " << child << ")";
       } else if (result > 1) {
-        LOG(ERROR) << "kevent (wait " << child << "): unexpected result "
-                   << result;
+        DLOG(ERROR) << "kevent (wait " << child << "): unexpected result "
+                    << result;
       } else if (result == 1) {
         if ((event.fflags & NOTE_EXIT) &&
             (event.ident == static_cast<uintptr_t>(child))) {
@@ -141,9 +141,9 @@
           BlockingReap(child);
           return;
         } else {
-          LOG(ERROR) << "kevent (wait " << child
-                     << "): unexpected event: fflags=" << event.fflags
-                     << ", ident=" << event.ident;
+          DLOG(ERROR) << "kevent (wait " << child
+                      << "): unexpected event: fflags=" << event.fflags
+                      << ", ident=" << event.ident;
         }
       }
     }
@@ -155,7 +155,7 @@
   // signal is not delivered to a live process.
   result = kill(child, SIGKILL);
   if (result == -1) {
-    PLOG(ERROR) << "kill(" << child << ", SIGKILL)";
+    DPLOG(ERROR) << "kill(" << child << ", SIGKILL)";
   } else {
     // The child is definitely on the way out now. BlockingReap won't need to
     // wait for long, if at all.