abi#10076 RTF export: handle frames without a valid anchor point

Ideally all frames have an anchor point in the maFrames vector, as
provided by MSWordExportBase. If that's not the case, then we have no
idea what would be a valid anchor point: just export those as inline, as
we did before.

(cherry picked from commit 2f331115)

Change-Id: I81134d9fb8dc4ca166084964d277ac02ceccde7b

sw/source/filter/ww8/rtfattributeoutput.cxx

@@ -3715,7 +3715,6 @@ void RtfAttributeOutput::FlyFrameGraphic( const SwFlyFrmFmt* pFlyFrmFmt, const S
             break;
         }
     }
-    assert(pFrame);
 
     /*
        If the graphic is not of type WMF then we will have to store two
@@ -3724,7 +3723,7 @@ void RtfAttributeOutput::FlyFrameGraphic( const SwFlyFrmFmt* pFlyFrmFmt, const S
        a wmf already then we don't need any such wrapping
        */
     bool bIsWMF = pBLIPType && std::strcmp(pBLIPType, OOO_STRING_SVTOOLS_RTF_WMETAFILE) == 0;
-    if (pFrame->IsInline())
+    if (!pFrame || pFrame->IsInline())
     {
     if (!bIsWMF)
         m_rExport.Strm() << "{" OOO_STRING_SVTOOLS_RTF_IGNORE OOO_STRING_SVTOOLS_RTF_SHPPICT;
@@ -3756,7 +3755,7 @@ void RtfAttributeOutput::FlyFrameGraphic( const SwFlyFrmFmt* pFlyFrmFmt, const S
         m_rExport.Strm() << "{" OOO_STRING_SVTOOLS_RTF_SP "{" OOO_STRING_SVTOOLS_RTF_SN " pib" "}{" OOO_STRING_SVTOOLS_RTF_SV " ";
     }
 
-    bool bWritePicProp = pFrame->IsInline();
+    bool bWritePicProp = !pFrame || pFrame->IsInline();
     if (pBLIPType)
         ExportPICT(pFlyFrmFmt, aSize, aRendered, aMapped, rCr, pBLIPType, pGraphicAry, nSize, m_rExport, &m_rExport.Strm(), bWritePicProp);
     else
@@ -3771,7 +3770,7 @@ void RtfAttributeOutput::FlyFrameGraphic( const SwFlyFrmFmt* pFlyFrmFmt, const S
         ExportPICT(pFlyFrmFmt, aSize, aRendered, aMapped, rCr, pBLIPType, pGraphicAry, nSize, m_rExport, &m_rExport.Strm(), bWritePicProp);
     }
 
-    if (pFrame->IsInline())
+    if (!pFrame || pFrame->IsInline())
     {
     if (!bIsWMF)
     {