Move CFX_UnownedPtr to UnownedPtr

This CL moves CFX_UnownedPtr to UnownedPtr and places in the fxcrt
namespace.

Bug: pdfium:898
Change-Id: I6d1fa463f365e5cb3aafa8c8a7a5f7eff62ed8e0
Reviewed-on: https://pdfium-review.googlesource.com/14620
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
diff --git a/fpdfsdk/pwl/cpwl_timer.h b/fpdfsdk/pwl/cpwl_timer.h
index 4a07425..6e082ab 100644
--- a/fpdfsdk/pwl/cpwl_timer.h
+++ b/fpdfsdk/pwl/cpwl_timer.h
@@ -7,7 +7,7 @@
 #ifndef FPDFSDK_PWL_CPWL_TIMER_H_
 #define FPDFSDK_PWL_CPWL_TIMER_H_
 
-#include "core/fxcrt/cfx_unowned_ptr.h"
+#include "core/fxcrt/unowned_ptr.h"
 
 class CFX_SystemHandler;
 class CPWL_TimerHandler;
@@ -24,8 +24,8 @@
 
  private:
   int32_t m_nTimerID;
-  CFX_UnownedPtr<CPWL_TimerHandler> m_pAttached;
-  CFX_UnownedPtr<CFX_SystemHandler> m_pSystemHandler;
+  UnownedPtr<CPWL_TimerHandler> m_pAttached;
+  UnownedPtr<CFX_SystemHandler> m_pSystemHandler;
 };
 
 #endif  // FPDFSDK_PWL_CPWL_TIMER_H_