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

content/common/sandbox_policy.cc

Index: content/common/sandbox_policy.cc
===================================================================
--- content/common/sandbox_policy.cc	(revision 107816)
+++ content/common/sandbox_policy.cc	(working copy)
@@ -198,7 +198,7 @@
     }
   }
   policy->AddDllToUnload(module_name);
-  VLOG(1) << "dll to unload found: " << module_name;
+  DVLOG(1) << "dll to unload found: " << module_name;
   return;
 }
 
@@ -374,8 +374,8 @@
 void InitBrokerServices(sandbox::BrokerServices* broker_services) {
   // TODO(abarth): DCHECK(CalledOnValidThread());
   //               See <http://b/1287166>.
-  CHECK(broker_services);
-  CHECK(!g_broker_services);
+  DCHECK(broker_services);
+  DCHECK(!g_broker_services);
   broker_services->Init();
   g_broker_services = broker_services;
 }
@@ -420,7 +420,7 @@
   if ((type == ChildProcessInfo::GPU_PROCESS) &&
       (browser_command_line.HasSwitch(switches::kDisableGpuSandbox))) {
     in_sandbox = false;
-    VLOG(1) << "GPU sandbox is disabled";
+    DVLOG(1) << "GPU sandbox is disabled";
   }
 
   if (browser_command_line.HasSwitch(switches::kNoSandbox) ||
@@ -532,7 +532,7 @@
   TRACE_EVENT_END_ETW("StartProcessWithAccess::LAUNCHPROCESS", 0, 0);
 
   if (sandbox::SBOX_ALL_OK != result) {
-    LOG(ERROR) << "Failed to launch process. Error: " << result;
+    DLOG(ERROR) << "Failed to launch process. Error: " << result;
     return 0;
   }