3 files changed, 8 insertions, 3 deletions
diff --git a/chrome/browser/printing/print_job_worker.h b/chrome/browser/printing/print_job_worker.h
index 0509a0f..3e25ec5 100644
--- a/chrome/browser/printing/print_job_worker.h
+++ b/chrome/browser/printing/print_job_worker.h
@@ -23,7 +23,7 @@ class PrintJobWorkerOwner;
 // NOTIFY_PRINT_JOB_EVENT notifications, but they are generated through a
 // NotificationTask task to be executed from the right thread, the UI thread.
 // PrintJob always outlives its worker instance.
-class PrintJobWorker : public Thread {
+class PrintJobWorker : public base::Thread {
  public:
   PrintJobWorker(PrintJobWorkerOwner* owner);
   ~PrintJobWorker();
diff --git a/chrome/browser/printing/printer_query.h b/chrome/browser/printing/printer_query.h
index 0cbffbf..d79ac73 100644
--- a/chrome/browser/printing/printer_query.h
+++ b/chrome/browser/printing/printer_query.h
@@ -11,7 +11,10 @@
 
 class CancelableTask;
 class MessageLoop;
+
+namespace base {
 class Thread;
+}
 
 namespace printing {
 
diff --git a/chrome/browser/printing/printing_layout_uitest.cc b/chrome/browser/printing/printing_layout_uitest.cc
index 2151824..30e1c75 100644
--- a/chrome/browser/printing/printing_layout_uitest.cc
+++ b/chrome/browser/printing/printing_layout_uitest.cc
@@ -559,7 +559,8 @@ TEST_F(PrintingLayoutTest, DISABLED_Delayed) {
               tab_proxy->NavigateToURL(url));
 
 
-    scoped_ptr<Thread> worker(new Thread("PrintingLayoutTest_worker"));
+    scoped_ptr<base::Thread> worker(
+        new base::Thread("PrintingLayoutTest_worker"));
     DismissTheWindow dismiss_task(process_util::GetProcId(process()));
     // We need to start the thread to be able to set the timer.
     worker->Start();
@@ -597,7 +598,8 @@ TEST_F(PrintingLayoutTest, DISABLED_IFrame) {
     EXPECT_EQ(AUTOMATION_MSG_NAVIGATION_SUCCESS,
               tab_proxy->NavigateToURL(url));
 
-    scoped_ptr<Thread> worker(new Thread("PrintingLayoutTest_worker"));
+    scoped_ptr<base::Thread> worker(
+        new base::Thread("PrintingLayoutTest_worker"));
     DismissTheWindow dismiss_task(process_util::GetProcId(process()));
     // We need to start the thread to be able to set the timer.
     worker->Start();