Merge to XFA: Get rid of most instance of 'foo != NULL'

core/src/fxge/win32/fx_win32_dwrite.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 "core/include/fxge/fx_ge.h"
 
 #if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
 #include <dwrite.h>
 
 #include "core/include/fxge/fx_ge_win32.h"
 #include "dwrite_int.h"
 
 typedef HRESULT(__stdcall* FuncType_DWriteCreateFactory)(
     __in DWRITE_FACTORY_TYPE,
     __in REFIID,
     __out IUnknown**);
 template <typename InterfaceType>
 inline void SafeRelease(InterfaceType** currentObject) {
-  if (*currentObject != NULL) {
+  if (*currentObject) {
     (*currentObject)->Release();
     *currentObject = NULL;
   }
 }
 template <typename InterfaceType>
 inline InterfaceType* SafeAcquire(InterfaceType* newObject) {
-  if (newObject != NULL) {
+  if (newObject) {
     newObject->AddRef();
   }
   return newObject;
 }
 class CDwFontFileStream final : public IDWriteFontFileStream {
  public:
   explicit CDwFontFileStream(void const* fontFileReferenceKey,
                              UINT32 fontFileReferenceKeySize);
   virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid,
                                                    void** ppvObject);
@@ skipping 362 matching lines @@
                                     textColor);
   if (FAILED(hr)) {
     return hr;
   }
   pBitmap_->CompositeBitmap(text_bbox.left, text_bbox.top, text_bbox.Width(),
                             text_bbox.Height(), &dib, text_bbox.left,
                             text_bbox.top, FXDIB_BLEND_NORMAL, pClipRgn);
   return hr;
 }
 #endif