Remove uses of this->foo.

core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp

Index: core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
index 533834e9b1b69734e1338955f107418899c293e3..2aa1b0e6dfbc6f8ce6a62231bf206aa08b30da12 100644
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
+++ b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
@@ -1536,8 +1536,8 @@ FX_BOOL CPDF_DIBSource::TransMask() const {
 void CPDF_DIBSource::SetDownSampleSize(int dest_width, int dest_height) {
   if (m_pDecoder) {
     m_pDecoder->DownScale(dest_width, dest_height);
-    this->m_Width = m_pDecoder->GetWidth();
-    this->m_Height = m_pDecoder->GetHeight();
+    m_Width = m_pDecoder->GetWidth();
+    m_Height = m_pDecoder->GetHeight();
   }
 }