Move common cloud print methods from service/cloud_print to common/cloud_print.

chrome/service/service_process.cc

Index: chrome/service/service_process.cc
diff --git a/chrome/service/service_process.cc b/chrome/service/service_process.cc
index 40607d9be222056bf8baa1da48eea4f0a9620d74..f7aa2915f532ff884bf50122a329ad78ac7cc284 100644
--- a/chrome/service/service_process.cc
+++ b/chrome/service/service_process.cc
@@ -270,9 +270,9 @@ bool ServiceProcess::HandleClientDisconnect() {
   return true;
 }
 
-CloudPrintProxy* ServiceProcess::GetCloudPrintProxy() {
+cloud_print::CloudPrintProxy* ServiceProcess::GetCloudPrintProxy() {
   if (!cloud_print_proxy_.get()) {
-    cloud_print_proxy_.reset(new CloudPrintProxy());
+    cloud_print_proxy_.reset(new cloud_print::CloudPrintProxy());
     cloud_print_proxy_->Initialize(service_prefs_.get(), this);
   }
   return cloud_print_proxy_.get();