Split Classify() helper in fx_bidi.cpp.

Get rid of some true/false usage at call site.

Change-Id: I55c330db1c1d7107f541ece66e467e891bdfc301
Reviewed-on: https://pdfium-review.googlesource.com/c/48173
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>

core/fxcrt/fx_bidi.cpp

diff --git a/core/fxcrt/fx_bidi.cpp b/core/fxcrt/fx_bidi.cpp
index 0cb8207..9fee05d 100644
--- a/core/fxcrt/fx_bidi.cpp
+++ b/core/fxcrt/fx_bidi.cpp
@@ -301,15 +301,14 @@
     (*chars)[i - 1].m_iBidiLevel = static_cast<int16_t>(iValue);
 }
 
-void Classify(std::vector<CFX_Char>* chars, size_t iCount, bool bWS) {
-  if (bWS) {
-    for (size_t i = 0; i < iCount; ++i) {
-      CFX_Char& cur = (*chars)[i];
-      cur.m_iBidiClass = FX_GetBidiClass(cur.char_code());
-    }
-    return;
+void Classify(std::vector<CFX_Char>* chars, size_t iCount) {
+  for (size_t i = 0; i < iCount; ++i) {
+    CFX_Char& cur = (*chars)[i];
+    cur.m_iBidiClass = FX_GetBidiClass(cur.char_code());
   }
+}
 
+void ClassifyWithTransform(std::vector<CFX_Char>* chars, size_t iCount) {
   for (size_t i = 0; i < iCount; ++i) {
     CFX_Char& cur = (*chars)[i];
     cur.m_iBidiClass =
@@ -541,12 +540,12 @@
   if (iCount < 2)
     return;
 
-  Classify(chars, iCount, false);
+  ClassifyWithTransform(chars, iCount);
   ResolveExplicit(chars, iCount);
   ResolveWeak(chars, iCount);
   ResolveNeutrals(chars, iCount);
   ResolveImplicit(chars, iCount);
-  Classify(chars, iCount, true);
+  Classify(chars, iCount);
   ResolveWhitespace(chars, iCount);
   Reorder(chars, iCount);
   Position(chars, iCount);