Rename CPDFDoc_Environment to CPDFSDK_Environment

fpdfsdk/include/cpdfsdk_environment.h

Index: fpdfsdk/include/cpdfsdk_environment.h
diff --git a/fpdfsdk/include/cpdfdoc_environment.h b/fpdfsdk/include/cpdfsdk_environment.h
similarity index 98%
rename from fpdfsdk/include/cpdfdoc_environment.h
rename to fpdfsdk/include/cpdfsdk_environment.h
index 2d29e11a92afe75c19ae2b9e9f66cf5086e8c1c3..7fd146a043bace5162ae5a1eb46c7986e57e8a2b 100644
--- a/fpdfsdk/include/cpdfdoc_environment.h
+++ b/fpdfsdk/include/cpdfsdk_environment.h
@@ -4,8 +4,8 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef FPDFSDK_INCLUDE_CPDFDOC_ENVIRONMENT_H_
-#define FPDFSDK_INCLUDE_CPDFDOC_ENVIRONMENT_H_
+#ifndef FPDFSDK_INCLUDE_CPDFSDK_ENVIRONMENT_H_
+#define FPDFSDK_INCLUDE_CPDFSDK_ENVIRONMENT_H_
 
 #include <memory>
 
@@ -25,10 +25,10 @@ class CPDFSDK_AnnotHandlerMgr;
 class CPDFSDK_Document;
 class IJS_Runtime;
 
-class CPDFDoc_Environment final {
+class CPDFSDK_Environment final {
  public:
-  CPDFDoc_Environment(UnderlyingDocumentType* pDoc, FPDF_FORMFILLINFO* pFFinfo);
-  ~CPDFDoc_Environment();
+  CPDFSDK_Environment(UnderlyingDocumentType* pDoc, FPDF_FORMFILLINFO* pFFinfo);
+  ~CPDFSDK_Environment();
 
   void FFI_Invalidate(FPDF_PAGE page,
                       double left,
@@ -432,4 +432,4 @@ class CPDFDoc_Environment final {
   std::unique_ptr<CFX_SystemHandler> m_pSysHandler;
 };
 
-#endif  // FPDFSDK_INCLUDE_CPDFDOC_ENVIRONMENT_H_
+#endif  // FPDFSDK_INCLUDE_CPDFSDK_ENVIRONMENT_H_