Remove some unnecessary enum keywords.

Change-Id: I8ed60e97e78f3f74bc94ea684a6cee41c0fef34a
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/70214
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

fpdfsdk/cpdfsdk_actionhandler.cpp

diff --git a/fpdfsdk/cpdfsdk_actionhandler.cpp b/fpdfsdk/cpdfsdk_actionhandler.cpp
index 1cc0ce2..ebcac3b 100644
--- a/fpdfsdk/cpdfsdk_actionhandler.cpp
+++ b/fpdfsdk/cpdfsdk_actionhandler.cpp
@@ -105,7 +105,7 @@
 
 bool CPDFSDK_ActionHandler::DoAction_Page(
     const CPDF_Action& action,
-    enum CPDF_AAction::AActionType eType,
+    CPDF_AAction::AActionType eType,
     CPDFSDK_FormFillEnvironment* pFormFillEnv) {
   std::set<const CPDF_Dictionary*> visited;
   return ExecuteDocumentPageAction(action, eType, pFormFillEnv, &visited);
@@ -113,7 +113,7 @@
 
 bool CPDFSDK_ActionHandler::DoAction_Document(
     const CPDF_Action& action,
-    enum CPDF_AAction::AActionType eType,
+    CPDF_AAction::AActionType eType,
     CPDFSDK_FormFillEnvironment* pFormFillEnv) {
   std::set<const CPDF_Dictionary*> visited;
   return ExecuteDocumentPageAction(action, eType, pFormFillEnv, &visited);

fpdfsdk/cpdfsdk_actionhandler.h

diff --git a/fpdfsdk/cpdfsdk_actionhandler.h b/fpdfsdk/cpdfsdk_actionhandler.h
index c4a8bbe..cbf9eb8 100644
--- a/fpdfsdk/cpdfsdk_actionhandler.h
+++ b/fpdfsdk/cpdfsdk_actionhandler.h
@@ -29,10 +29,10 @@
                            WideString csJSName,
                            CPDFSDK_FormFillEnvironment* pFormFillEnv);
   bool DoAction_Page(const CPDF_Action& action,
-                     enum CPDF_AAction::AActionType eType,
+                     CPDF_AAction::AActionType eType,
                      CPDFSDK_FormFillEnvironment* pFormFillEnv);
   bool DoAction_Document(const CPDF_Action& action,
-                         enum CPDF_AAction::AActionType eType,
+                         CPDF_AAction::AActionType eType,
                          CPDFSDK_FormFillEnvironment* pFormFillEnv);
   bool DoAction_Field(const CPDF_Action& action,
                       CPDF_AAction::AActionType type,