Revert "Remove FX_Alloc() null checks now that it can't return NULL."

core/src/fxge/dib/fx_dib_engine.cpp

Index: core/src/fxge/dib/fx_dib_engine.cpp
diff --git a/core/src/fxge/dib/fx_dib_engine.cpp b/core/src/fxge/dib/fx_dib_engine.cpp
index b486def16761eba4abf37b61388154deaf55beca..7c40171c2bc5b9d4c47058f95441a2a7c7ae3f82 100644
--- a/core/src/fxge/dib/fx_dib_engine.cpp
+++ b/core/src/fxge/dib/fx_dib_engine.cpp
@@ -796,8 +796,14 @@ FX_BOOL CFX_ImageStretcher::StartQuickStretch()
     }
     size *= m_DestBPP;
     m_pScanline = FX_Alloc(FX_BYTE, (size / 8 + 3) / 4 * 4);
+    if (!m_pScanline) {
+        return FALSE;
+    }
     if (m_pSource->m_pAlphaMask) {
         m_pMaskScanline = FX_Alloc(FX_BYTE, (m_ClipRect.Width() + 3) / 4 * 4);
+        if (!m_pMaskScanline) {
+            return FALSE;
+        }
     }
     if (m_pSource->GetWidth() * m_pSource->GetHeight() < MAX_PROGRESSIVE_STRETCH_PIXELS) {
         ContinueQuickStretch(NULL);