Simplify PDFium by removing code that's not used in the open source repo.

core/src/fpdfapi/fpdf_basic_module.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 "../../include/fxcodec/fx_codec.h"
 #include "../../include/fpdfapi/fpdf_module.h"
 static CPDF_ModuleMgr*  g_FPDFAPI_pDefaultMgr = NULL;
 CPDF_ModuleMgr* CPDF_ModuleMgr::Get()
@@ skipping 60 matching lines @@
         return (folder + "\\") + name;
     }
 #else
     if (folder[folder_len - 1] == '/') {
         return folder + name;
     } else {
         return (folder + "/") + name;
     }
 #endif
 }
-void CPDF_ModuleMgr::SetModulePath(FX_LPCSTR module_name, FX_LPCSTR path)
-{
-    if (module_name == NULL || module_name[0] == 0) {
-        m_DefaultModulePath = path;
-    } else {
-        m_ModulePathList.SetAt(module_name, FX_NEW CFX_ByteString(path, -1));
-    }
-}
-CFX_ByteString CPDF_ModuleMgr::GetModuleFilePath(FX_LPCSTR module_name, FX_LPCSTR name)
-{
-    CFX_ByteString* pPath = NULL;
-    if (m_ModulePathList.Lookup(module_name, (FX_LPVOID&)pPath)) {
-        return _GetPath(*pPath, name);
-    }
-    if (!m_DefaultModulePath.IsEmpty()) {
-        return _GetPath(m_DefaultModulePath, name);
-    }
-#if _FXM_PLATFORM_  == _FXM_PLATFORM_WINDOWS_
-    FX_WCHAR app_path[260];
-    ::GetModuleFileNameW(NULL, (LPWSTR)app_path, 260);
-    FX_INTPTR len = FXSYS_wcslen(app_path);
-    for (FX_INTPTR i = len; i >= 0; i --)
-        if (app_path[i] == '\\') {
-            app_path[i] = 0;
-            break;
-        }
-    CFX_ByteString path = CFX_ByteString::FromUnicode(app_path);
-    path += '\\';
-    path += name;
-    return path;
-#else
-    return name;
-#endif
-}
 void CPDF_ModuleMgr::NotifyModuleAvailable(FX_LPCSTR module_name)
 {
     if (FXSYS_strcmp(module_name, ADDIN_NAME_CJK) == 0) {
         m_pPageModule->NotifyCJKAvailable();
     } else if (FXSYS_strcmp(module_name, ADDIN_NAME_DECODER) == 0) {
         m_pRenderModule->NotifyDecoderAvailable();
     }
 }
 void CPDF_ModuleMgr::RegisterSecurityHandler(FX_LPCSTR filter, CPDF_SecurityHandler * (*CreateHandler)(void* param), void* param)
 {
@@ skipping 44 matching lines @@
     return m_pCodecModule ? m_pCodecModule->GetJbig2Module() : NULL;
 }
 ICodec_IccModule* CPDF_ModuleMgr::GetIccModule()
 {
     return m_pCodecModule ? m_pCodecModule->GetIccModule() : NULL;
 }
 ICodec_FlateModule* CPDF_ModuleMgr::GetFlateModule()
 {
     return m_pCodecModule ? m_pCodecModule->GetFlateModule() : NULL;
 }