Remove unused IFDE_CSSStyleSheetCache/CFDE_CSSStyleSheetCache.

xfa/fde/css/fde_csscache.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 "xfa/fde/css/fde_csscache.h"
 
 #include <algorithm>
 
 #include "core/fxcrt/include/fx_ext.h"
 
 FDE_CSSCacheItem::FDE_CSSCacheItem(IFDE_CSSStyleSheet* p)
     : pStylesheet(p), dwActivity(0) {
   FXSYS_assert(pStylesheet);
   pStylesheet->AddRef();
 }
 FDE_CSSCacheItem::~FDE_CSSCacheItem() {
   pStylesheet->Release();
 }
-IFDE_CSSStyleSheetCache* IFDE_CSSStyleSheetCache::Create() {
-  return new CFDE_CSSStyleSheetCache;
-}
 
-CFDE_CSSStyleSheetCache::CFDE_CSSStyleSheetCache()
-    : m_pFixedStore(NULL), m_iMaxItems(5) {}
-
-CFDE_CSSStyleSheetCache::~CFDE_CSSStyleSheetCache() {
-  for (const auto& pair : m_Stylesheets) {
-    FXTARGET_DeleteWith(FDE_CSSCacheItem, m_pFixedStore, pair.second);
-  }
-  m_Stylesheets.clear();
-  if (m_pFixedStore) {
-    m_pFixedStore->Release();
-  }
-}
-void CFDE_CSSStyleSheetCache::AddStyleSheet(const CFX_ByteStringC& szKey,
-                                            IFDE_CSSStyleSheet* pStyleSheet) {
-  FXSYS_assert(pStyleSheet != NULL);
-  if (m_pFixedStore == NULL) {
-    m_pFixedStore =
-        FX_CreateAllocator(FX_ALLOCTYPE_Fixed, std::max(10, m_iMaxItems),
-                           sizeof(FDE_CSSCacheItem));
-    FXSYS_assert(m_pFixedStore != NULL);
-  }
-  auto it = m_Stylesheets.find(szKey);
-  if (it != m_Stylesheets.end()) {
-    FDE_CSSCacheItem* pItem = it->second;
-    if (pItem->pStylesheet != pStyleSheet) {
-      pItem->pStylesheet->Release();
-      pItem->pStylesheet = pStyleSheet;
-      pItem->pStylesheet->AddRef();
-      pItem->dwActivity = 0;
-    }
-  } else {
-    while (static_cast<int32_t>(m_Stylesheets.size()) >= m_iMaxItems) {
-      RemoveLowestActivityItem();
-    }
-    m_Stylesheets[szKey] =
-        FXTARGET_NewWith(m_pFixedStore) FDE_CSSCacheItem(pStyleSheet);
-  }
-}
-IFDE_CSSStyleSheet* CFDE_CSSStyleSheetCache::GetStyleSheet(
-    const CFX_ByteStringC& szKey) const {
-  auto it = m_Stylesheets.find(szKey);
-  if (it == m_Stylesheets.end()) {
-    return nullptr;
-  }
-  FDE_CSSCacheItem* pItem = it->second;
-  pItem->dwActivity++;
-  pItem->pStylesheet->AddRef();
-  return pItem->pStylesheet;
-}
-void CFDE_CSSStyleSheetCache::RemoveStyleSheet(const CFX_ByteStringC& szKey) {
-  auto it = m_Stylesheets.find(szKey);
-  if (it == m_Stylesheets.end()) {
-    return;
-  }
-  FXTARGET_DeleteWith(FDE_CSSCacheItem, m_pFixedStore, it->second);
-  m_Stylesheets.erase(it);
-}
-void CFDE_CSSStyleSheetCache::RemoveLowestActivityItem() {
-  auto found = m_Stylesheets.end();
-  for (auto it = m_Stylesheets.begin(); it != m_Stylesheets.end(); ++it) {
-    switch (it->first.GetID()) {
-      case FXBSTR_ID('#', 'U', 'S', 'E'):
-      case FXBSTR_ID('#', 'A', 'G', 'E'):
-        continue;
-    }
-    if (found == m_Stylesheets.end() ||
-        it->second->dwActivity > found->second->dwActivity) {
-      found = it;
-    }
-  }
-  if (found != m_Stylesheets.end()) {
-    FXTARGET_DeleteWith(FDE_CSSCacheItem, m_pFixedStore, found->second);
-    m_Stylesheets.erase(found);
-  }
-}
 FDE_CSSTagCache::FDE_CSSTagCache(FDE_CSSTagCache* parent,
                                  IFDE_CSSTagProvider* tag)
     : pTag(tag),
       pParent(parent),
       dwIDHash(0),
       dwTagHash(0),
       iClassIndex(0),
       dwClassHashs(1) {
   FXSYS_assert(pTag != NULL);
   CFX_WideStringC wsValue, wsName = pTag->GetTagName();
@@ skipping 29 matching lines @@
 void CFDE_CSSAccelerator::OnEnterTag(IFDE_CSSTagProvider* pTag) {
   FDE_CSSTagCache* pTop = GetTopElement();
   FDE_CSSTagCache item(pTop, pTag);
   m_Stack.Push(item);
 }
 void CFDE_CSSAccelerator::OnLeaveTag(IFDE_CSSTagProvider* pTag) {
   FXSYS_assert(m_Stack.GetTopElement());
   FXSYS_assert(m_Stack.GetTopElement()->GetTag() == pTag);
   m_Stack.Pop();
 }