Do IWYU for CFX_PSRenderer.

Add various headers that should be directly included, rather than
transitively includes. Remove a few headers that are not necessary.

Change-Id: I1ab13fcad231ed5b24278eba2f1fa4fbf5d31120
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/84970
Reviewed-by: Hui Yingst <nigi@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/core/fxge/win32/cfx_psrenderer.cpp b/core/fxge/win32/cfx_psrenderer.cpp
index dfecb1f..58c6556 100644
--- a/core/fxge/win32/cfx_psrenderer.cpp
+++ b/core/fxge/win32/cfx_psrenderer.cpp
@@ -7,6 +7,7 @@
 #include "core/fxge/win32/cfx_psrenderer.h"
 
 #include <math.h>
+#include <string.h>
 
 #include <algorithm>
 #include <array>
@@ -15,7 +16,10 @@
 #include <string>
 #include <utility>
 
-#include "core/fxcrt/maybe_owned.h"
+#include "core/fxcrt/bytestring.h"
+#include "core/fxcrt/fx_memory.h"
+#include "core/fxcrt/fx_memory_wrappers.h"
+#include "core/fxcrt/fx_stream.h"
 #include "core/fxge/cfx_fillrenderoptions.h"
 #include "core/fxge/cfx_font.h"
 #include "core/fxge/cfx_fontcache.h"
@@ -29,7 +33,6 @@
 #include "core/fxge/fx_freetype.h"
 #include "core/fxge/text_char_pos.h"
 #include "core/fxge/win32/cfx_psfonttracker.h"
-#include "core/fxge/win32/cpsoutput.h"
 #include "third_party/base/check.h"
 
 namespace {
diff --git a/core/fxge/win32/cfx_psrenderer.h b/core/fxge/win32/cfx_psrenderer.h
index 091ef82..2836398 100644
--- a/core/fxge/win32/cfx_psrenderer.h
+++ b/core/fxge/win32/cfx_psrenderer.h
@@ -14,6 +14,7 @@
 #include <sstream>
 #include <vector>
 
+#include "core/fxcrt/bytestring.h"
 #include "core/fxcrt/fx_coordinates.h"
 #include "core/fxcrt/fx_memory_wrappers.h"
 #include "core/fxcrt/fx_stream.h"