Add namespace and re-arrange PDFium's local copy of chromium /base.

core/src/fxcrt/fx_basic_array.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/fxcrt/fx_basic.h"
-#include "../../../third_party/numerics/safe_math.h"
+#include "../../../third_party/base/numerics/safe_math.h"
 
 CFX_BasicArray::CFX_BasicArray(int unit_size)
     : m_pData(NULL)
     , m_nSize(0)
     , m_nMaxSize(0)
 {
     if (unit_size < 0 || unit_size > (1 << 28)) {
         m_nUnitSize = 4;
     } else {
         m_nUnitSize = unit_size;
     }
 }
 CFX_BasicArray::~CFX_BasicArray()
 {
     FX_Free(m_pData);
 }
 FX_BOOL CFX_BasicArray::SetSize(int nNewSize)
 {
     if (nNewSize <= 0) {
         FX_Free(m_pData);
         m_pData = NULL;
         m_nSize = m_nMaxSize = 0;
         return 0 == nNewSize;
     }
 
     if (m_pData == NULL) {
-        base::CheckedNumeric<int> totalSize = nNewSize;
+        pdfium::base::CheckedNumeric<int> totalSize = nNewSize;
         totalSize *= m_nUnitSize;
         if (!totalSize.IsValid()) {
             m_nSize = m_nMaxSize = 0;
             return FALSE;
         }
         m_pData = FX_Alloc(FX_BYTE, totalSize.ValueOrDie());
         if (!m_pData) {
             m_nSize = m_nMaxSize = 0;
             return FALSE;
         }
         m_nSize = m_nMaxSize = nNewSize;
     } else if (nNewSize <= m_nMaxSize) {
         if (nNewSize > m_nSize) {
             FXSYS_memset32(m_pData + m_nSize * m_nUnitSize, 0, (nNewSize - m_nSize) * m_nUnitSize);
         }
         m_nSize = nNewSize;
     } else {
         int nNewMax = nNewSize < m_nMaxSize ? m_nMaxSize : nNewSize;
-        base::CheckedNumeric<int> totalSize = nNewMax;
+        pdfium::base::CheckedNumeric<int> totalSize = nNewMax;
         totalSize *= m_nUnitSize;
         if (!totalSize.IsValid() || nNewMax < m_nSize) {
             return FALSE;
         }
         FX_LPBYTE pNewData = FX_Realloc(FX_BYTE, m_pData, totalSize.ValueOrDie());
         if (pNewData == NULL) {
             return FALSE;
         }
         FXSYS_memset32(pNewData + m_nSize * m_nUnitSize, 0, (nNewMax - m_nSize) * m_nUnitSize);
         m_pData = pNewData;
         m_nSize = nNewSize;
         m_nMaxSize = nNewMax;
     }
     return TRUE;
 }
 FX_BOOL CFX_BasicArray::Append(const CFX_BasicArray& src)
 {
     int nOldSize = m_nSize;
-    base::CheckedNumeric<int> newSize = m_nSize;
+    pdfium::base::CheckedNumeric<int> newSize = m_nSize;
     newSize += src.m_nSize;
     if (m_nUnitSize != src.m_nUnitSize || !newSize.IsValid() || !SetSize(newSize.ValueOrDie())) {
         return FALSE;
     }
 
     FXSYS_memcpy32(m_pData + nOldSize * m_nUnitSize, src.m_pData, src.m_nSize * m_nUnitSize);
     return TRUE;
 }
 FX_BOOL CFX_BasicArray::Copy(const CFX_BasicArray& src)
 {
@@ skipping 264 matching lines @@
                 FX_Free(pIndex[i % m_IndexSize]);
                 pIndex[i % m_IndexSize] = NULL;
             }
         } else {
             FX_Free(m_pIndex);
             m_pIndex = NULL;
         }
     }
     m_DataSize -= count;
 }