Move CAgg_PathData out of fx_agg_driver.h.

It is only used within fx_agg_driver.cpp, so put it inside an anonymous
namespace.

Change-Id: Ifd411b8b779429f49c631a173c26101f27b69f7c
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/74392
Reviewed-by: Hui Yingst <nigi@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

core/fxge/agg/fx_agg_driver.cpp

diff --git a/core/fxge/agg/fx_agg_driver.cpp b/core/fxge/agg/fx_agg_driver.cpp
index 6f87e92..6dfcc61 100644
--- a/core/fxge/agg/fx_agg_driver.cpp
+++ b/core/fxge/agg/fx_agg_driver.cpp
@@ -26,6 +26,7 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
 #endif
+#include "third_party/agg23/agg_clip_liang_barsky.h"
 #include "third_party/agg23/agg_conv_dash.h"
 #include "third_party/agg23/agg_conv_stroke.h"
 #include "third_party/agg23/agg_curves.h"
@@ -1036,7 +1037,16 @@
   unsigned m_top;
 };
 
-}  // namespace
+class CAgg_PathData {
+ public:
+  CAgg_PathData() = default;
+  ~CAgg_PathData() = default;
+
+  void BuildPath(const CFX_PathData* pPathData,
+                 const CFX_Matrix* pObject2Device);
+
+  agg::path_storage m_PathData;
+};
 
 void CAgg_PathData::BuildPath(const CFX_PathData* pPathData,
                               const CFX_Matrix* pObject2Device) {
@@ -1082,6 +1092,8 @@
   }
 }
 
+}  // namespace
+
 CFX_AggDeviceDriver::CFX_AggDeviceDriver(
     const RetainPtr<CFX_DIBitmap>& pBitmap,
     bool bRgbByteOrder,

core/fxge/agg/fx_agg_driver.h

diff --git a/core/fxge/agg/fx_agg_driver.h b/core/fxge/agg/fx_agg_driver.h
index 5806aef..3457478 100644
--- a/core/fxge/agg/fx_agg_driver.h
+++ b/core/fxge/agg/fx_agg_driver.h
@@ -13,8 +13,6 @@
 #include "build/build_config.h"
 #include "core/fxge/cfx_fillrenderoptions.h"
 #include "core/fxge/renderdevicedriver_iface.h"
-#include "third_party/agg23/agg_clip_liang_barsky.h"
-#include "third_party/agg23/agg_path_storage.h"
 #include "third_party/agg23/agg_rasterizer_scanline_aa.h"
 
 class CFX_ClipRgn;
@@ -24,16 +22,6 @@
 
 namespace pdfium {
 
-class CAgg_PathData {
- public:
-  CAgg_PathData() {}
-  ~CAgg_PathData() {}
-  void BuildPath(const CFX_PathData* pPathData,
-                 const CFX_Matrix* pObject2Device);
-
-  pdfium::agg::path_storage m_PathData;
-};
-
 class CFX_AggDeviceDriver final : public RenderDeviceDriverIface {
  public:
   CFX_AggDeviceDriver(const RetainPtr<CFX_DIBitmap>& pBitmap,