Return unique_ptr from CPDFXFA_Context::GetTimerMgr()

Proves ownership by avoiding a std::unique_ptr::reset() call.

Change-Id: Ia6e11920d84dda49699736ef3189e58d240d409e
Reviewed-on: https://pdfium-review.googlesource.com/33230
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

6 files changed, 11 insertions, 10 deletions

diff --git a/fpdfsdk/fpdfxfa/cpdfxfa_context.cpp b/fpdfsdk/fpdfxfa/cpdfxfa_context.cpp
index 36d86650b7..446a77ea96 100644
--- a/fpdfsdk/fpdfxfa/cpdfxfa_context.cpp
+++ b/fpdfsdk/fpdfxfa/cpdfxfa_context.cpp
@@ -341,9 +341,8 @@ bool CPDFXFA_Context::PutRequestURL(const WideString& wsURL,
          m_pFormFillEnv->PutRequestURL(wsURL, wsData, wsEncode);
 }
 
-IFWL_AdapterTimerMgr* CPDFXFA_Context::GetTimerMgr() {
-  CXFA_FWLAdapterTimerMgr* pAdapter = nullptr;
-  if (m_pFormFillEnv)
-    pAdapter = new CXFA_FWLAdapterTimerMgr(m_pFormFillEnv.Get());
-  return pAdapter;
+std::unique_ptr<IFWL_AdapterTimerMgr> CPDFXFA_Context::GetTimerMgr() {
+  if (!m_pFormFillEnv)
+    return nullptr;
+  return pdfium::MakeUnique<CXFA_FWLAdapterTimerMgr>(m_pFormFillEnv.Get());
 }
diff --git a/fpdfsdk/fpdfxfa/cpdfxfa_context.h b/fpdfsdk/fpdfxfa/cpdfxfa_context.h
index b240e7ee11..6458926a68 100644
--- a/fpdfsdk/fpdfxfa/cpdfxfa_context.h
+++ b/fpdfsdk/fpdfxfa/cpdfxfa_context.h
@@ -91,7 +91,7 @@ class CPDFXFA_Context : public CPDF_Document::Extension,
                      const WideString& wsData,
                      const WideString& wsEncode) override;
 
-  IFWL_AdapterTimerMgr* GetTimerMgr() override;
+  std::unique_ptr<IFWL_AdapterTimerMgr> GetTimerMgr() override;
 
  protected:
   friend class CPDFXFA_DocEnvironment;
diff --git a/xfa/fwl/cfwl_timer.cpp b/xfa/fwl/cfwl_timer.cpp
index 597f928ba0..07d8461b9f 100644
--- a/xfa/fwl/cfwl_timer.cpp
+++ b/xfa/fwl/cfwl_timer.cpp
@@ -26,7 +26,7 @@ CFWL_TimerInfo* CFWL_Timer::StartTimer(uint32_t dwElapse, bool bImmediately) {
     return nullptr;
 
   if (!m_pTimeMgrAdapter)
-    m_pTimeMgrAdapter.reset(pAdapterNative->GetTimerMgr());
+    m_pTimeMgrAdapter = pAdapterNative->GetTimerMgr();
 
   if (!m_pTimeMgrAdapter)
     return nullptr;
diff --git a/xfa/fxfa/cxfa_ffapp.cpp b/xfa/fxfa/cxfa_ffapp.cpp
index 1367a77b87..f6d6bdd6b5 100644
--- a/xfa/fxfa/cxfa_ffapp.cpp
+++ b/xfa/fxfa/cxfa_ffapp.cpp
@@ -16,6 +16,7 @@
 #include "xfa/fgas/font/cfgas_fontmgr.h"
 #include "xfa/fwl/cfwl_notedriver.h"
 #include "xfa/fwl/cfwl_widgetmgr.h"
+#include "xfa/fwl/ifwl_adaptertimermgr.h"
 #include "xfa/fxfa/cxfa_ffdoc.h"
 #include "xfa/fxfa/cxfa_ffwidgethandler.h"
 #include "xfa/fxfa/cxfa_fontmgr.h"
@@ -66,7 +67,7 @@ CXFA_FWLAdapterWidgetMgr* CXFA_FFApp::GetFWLAdapterWidgetMgr() {
   return m_pAdapterWidgetMgr.get();
 }
 
-IFWL_AdapterTimerMgr* CXFA_FFApp::GetTimerMgr() const {
+std::unique_ptr<IFWL_AdapterTimerMgr> CXFA_FFApp::GetTimerMgr() const {
   return m_pProvider->GetTimerMgr();
 }
 
diff --git a/xfa/fxfa/cxfa_ffapp.h b/xfa/fxfa/cxfa_ffapp.h
index c43cb3e6b2..acc3bf0783 100644
--- a/xfa/fxfa/cxfa_ffapp.h
+++ b/xfa/fxfa/cxfa_ffapp.h
@@ -44,8 +44,8 @@ class CXFA_FFApp {
 
   IXFA_AppProvider* GetAppProvider() const { return m_pProvider.Get(); }
   const CFWL_App* GetFWLApp() const { return m_pFWLApp.get(); }
-  IFWL_AdapterTimerMgr* GetTimerMgr() const;
   CXFA_FontMgr* GetXFAFontMgr() { return &m_pFontMgr; }
+  std::unique_ptr<IFWL_AdapterTimerMgr> GetTimerMgr() const;
 
   void ClearEventTargets();
 
diff --git a/xfa/fxfa/fxfa.h b/xfa/fxfa/fxfa.h
index 8a2c4e0296..59c8c08de8 100644
--- a/xfa/fxfa/fxfa.h
+++ b/xfa/fxfa/fxfa.h
@@ -7,6 +7,7 @@
 #ifndef XFA_FXFA_FXFA_H_
 #define XFA_FXFA_FXFA_H_
 
+#include <memory>
 #include <vector>
 
 #include "core/fxcrt/fx_coordinates.h"
@@ -201,7 +202,7 @@ class IXFA_AppProvider {
                              const WideString& wsData,
                              const WideString& wsEncode) = 0;
 
-  virtual IFWL_AdapterTimerMgr* GetTimerMgr() = 0;
+  virtual std::unique_ptr<IFWL_AdapterTimerMgr> GetTimerMgr() = 0;
 };
 
 class IXFA_DocEnvironment {