Fix typos in CXFA_FMParser.

Change-Id: I0059e2ec25e90162a241a49e5d7b327c80330a33
Reviewed-on: https://pdfium-review.googlesource.com/29890
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
diff --git a/xfa/fxfa/fm2js/cxfa_fmparser.cpp b/xfa/fxfa/fm2js/cxfa_fmparser.cpp
index dca427a..fb4a7f4 100644
--- a/xfa/fxfa/fm2js/cxfa_fmparser.cpp
+++ b/xfa/fxfa/fm2js/cxfa_fmparser.cpp
@@ -400,7 +400,7 @@
   if (HasError() || !IncrementParseDepthAndCheck())
     return nullptr;
 
-  std::unique_ptr<CXFA_FMSimpleExpression> e1 = ParseAddtiveExpression();
+  std::unique_ptr<CXFA_FMSimpleExpression> e1 = ParseAdditiveExpression();
   if (!e1)
     return nullptr;
 
@@ -416,7 +416,7 @@
         if (!NextToken())
           return nullptr;
 
-        e2 = ParseAddtiveExpression();
+        e2 = ParseAdditiveExpression();
         if (!e2)
           return nullptr;
 
@@ -428,7 +428,7 @@
         if (!NextToken())
           return nullptr;
 
-        e2 = ParseAddtiveExpression();
+        e2 = ParseAdditiveExpression();
         if (!e2)
           return nullptr;
 
@@ -440,7 +440,7 @@
         if (!NextToken())
           return nullptr;
 
-        e2 = ParseAddtiveExpression();
+        e2 = ParseAdditiveExpression();
         if (!e2)
           return nullptr;
 
@@ -452,7 +452,7 @@
         if (!NextToken())
           return nullptr;
 
-        e2 = ParseAddtiveExpression();
+        e2 = ParseAdditiveExpression();
         if (!e2)
           return nullptr;
 
@@ -470,7 +470,7 @@
 // Additive := MultiplicativeExpression |
 //             AdditiveExpression AdditiveOperator MultiplicativeExpression
 std::unique_ptr<CXFA_FMSimpleExpression>
-CXFA_FMParser::ParseAddtiveExpression() {
+CXFA_FMParser::ParseAdditiveExpression() {
   AutoRestorer<unsigned long> restorer(&m_parse_depth);
   if (HasError() || !IncrementParseDepthAndCheck())
     return nullptr;
diff --git a/xfa/fxfa/fm2js/cxfa_fmparser.h b/xfa/fxfa/fm2js/cxfa_fmparser.h
index 2f72871..30fd60f 100644
--- a/xfa/fxfa/fm2js/cxfa_fmparser.h
+++ b/xfa/fxfa/fm2js/cxfa_fmparser.h
@@ -46,7 +46,7 @@
   std::unique_ptr<CXFA_FMSimpleExpression> ParseLogicalAndExpression();
   std::unique_ptr<CXFA_FMSimpleExpression> ParseEqualityExpression();
   std::unique_ptr<CXFA_FMSimpleExpression> ParseRelationalExpression();
-  std::unique_ptr<CXFA_FMSimpleExpression> ParseAddtiveExpression();
+  std::unique_ptr<CXFA_FMSimpleExpression> ParseAdditiveExpression();
   std::unique_ptr<CXFA_FMSimpleExpression> ParseMultiplicativeExpression();
   std::unique_ptr<CXFA_FMSimpleExpression> ParseUnaryExpression();
   std::unique_ptr<CXFA_FMSimpleExpression> ParsePrimaryExpression();