Apply structure packing to FXTEXT_CHARPOS to save space.

BUG=pdfium:562

Review-Url: https://codereview.chromium.org/2257313002
diff --git a/core/fxge/include/cfx_renderdevice.h b/core/fxge/include/cfx_renderdevice.h
index 390d39b..9dd5f55 100644
--- a/core/fxge/include/cfx_renderdevice.h
+++ b/core/fxge/include/cfx_renderdevice.h
@@ -68,15 +68,15 @@
 #define FXTEXT_NOSMOOTH 0x20
 
 struct FXTEXT_CHARPOS {
-  uint32_t m_GlyphIndex;
+  FX_FLOAT m_AdjustMatrix[4];
   FX_FLOAT m_OriginX;
   FX_FLOAT m_OriginY;
-  int m_FontCharWidth;
-  FX_BOOL m_bGlyphAdjust;
-  FX_FLOAT m_AdjustMatrix[4];
+  uint32_t m_GlyphIndex;
+  int32_t m_FontCharWidth;
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
   uint32_t m_ExtGID;
 #endif
+  bool m_bGlyphAdjust;
   bool m_bFontStyle;
 };
 
diff --git a/core/fxge/skia/fx_skia_device_unittest.cpp b/core/fxge/skia/fx_skia_device_unittest.cpp
index 77d6576..5162e9c 100644
--- a/core/fxge/skia/fx_skia_device_unittest.cpp
+++ b/core/fxge/skia/fx_skia_device_unittest.cpp
@@ -36,7 +36,7 @@
 }
 
 void CommonTest(CFX_SkiaDeviceDriver* driver, const State& state) {
-  FXTEXT_CHARPOS charPos[] = {{1, 0, 1, 4, false, {0, 0, 0, 0}, false}};
+  FXTEXT_CHARPOS charPos[] = {{{0, 0, 0, 0}, 0, 1, 1, 4, false, false}};
   CFX_Font font;
   FX_FLOAT fontSize = 1;
   CFX_FontCache cache;