Review and cleanup lint warnings.

fpdfsdk/src/fsdk_mgr.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "fpdfsdk/include/fsdk_mgr.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 44 matching lines @@
   explicit CFX_SystemHandler(CPDFDoc_Environment* pEnv)
       : m_pEnv(pEnv), m_nCharSet(-1) {}
   ~CFX_SystemHandler() override {}
 
  public:
   // IFX_SystemHandler
   void InvalidateRect(FX_HWND hWnd, FX_RECT rect) override;
   void OutputSelectedRect(void* pFormFiller, CFX_FloatRect& rect) override;
   FX_BOOL IsSelectionImplemented() override;
   CFX_WideString GetClipboardText(FX_HWND hWnd) override { return L""; }
-  FX_BOOL SetClipboardText(FX_HWND hWnd, CFX_WideString string) override {
+  FX_BOOL SetClipboardText(FX_HWND hWnd, CFX_WideString str) override {
     return FALSE;
   }
   void ClientToScreen(FX_HWND hWnd, int32_t& x, int32_t& y) override {}
   void ScreenToClient(FX_HWND hWnd, int32_t& x, int32_t& y) override {}
   void SetCursor(int32_t nCursorType) override;
   FX_HMENU CreatePopupMenu() override { return NULL; }
   FX_BOOL AppendMenuItem(FX_HMENU hMenu,
                          int32_t nIDNewItem,
-                         CFX_WideString string) override {
+                         CFX_WideString str) override {
     return FALSE;
   }
   FX_BOOL EnableMenuItem(FX_HMENU hMenu,
                          int32_t nIDItem,
                          FX_BOOL bEnabled) override {
     return FALSE;
   }
   int32_t TrackPopupMenu(FX_HMENU hMenu,
                          int32_t x,
                          int32_t y,
@@ skipping 1105 matching lines @@
   CPDFSDK_Annot* pFocusAnnot = m_pSDKDoc->GetFocusAnnot();
   if (!pFocusAnnot)
     return nullptr;
 
   for (CPDFSDK_Annot* pAnnot : m_fxAnnotArray) {
     if (pAnnot == pFocusAnnot)
       return pAnnot;
   }
   return nullptr;
 }