Make the I in IFormFiller explicit

fpdfsdk/formfiller/cffl_checkbox.cpp

Index: fpdfsdk/formfiller/cffl_checkbox.cpp
diff --git a/fpdfsdk/formfiller/cffl_checkbox.cpp b/fpdfsdk/formfiller/cffl_checkbox.cpp
index ef1bf18ea659151456a4ce80587f4cef2790e0f0..fdc5614002832a655c0f2d9ed32433db9bb2e509 100644
--- a/fpdfsdk/formfiller/cffl_checkbox.cpp
+++ b/fpdfsdk/formfiller/cffl_checkbox.cpp
@@ -42,8 +42,9 @@ FX_BOOL CFFL_CheckBox::OnChar(CPDFSDK_Annot* pAnnot,
   switch (nChar) {
     case FWL_VKEY_Return:
     case FWL_VKEY_Space: {
-      CFFL_IFormFiller* pIFormFiller = m_pEnv->GetIFormFiller();
-      ASSERT(pIFormFiller);
+      CFFL_InteractiveFormFiller* pInteractiveFormFiller =
+          m_pEnv->GetInteractiveFormFiller();
+      ASSERT(pInteractiveFormFiller);

[Tom Sepez, 2016/09/21 18:15:30]

nit: we'll segv at line 55, not sure this helps.

[dsinclair, 2016/09/21 18:34:01]

Dropped the local all together.

 
       CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
       ASSERT(pPageView);
@@ -51,7 +52,8 @@ FX_BOOL CFFL_CheckBox::OnChar(CPDFSDK_Annot* pAnnot,
       FX_BOOL bReset = FALSE;
       FX_BOOL bExit = FALSE;
 
-      pIFormFiller->OnButtonUp(m_pWidget, pPageView, bReset, bExit, nFlags);
+      pInteractiveFormFiller->OnButtonUp(m_pWidget, pPageView, bReset, bExit,
+                                         nFlags);
 
       if (bReset)
         return TRUE;