Get rid of most instance of 'foo != NULL'

fpdfsdk/src/javascript/JS_Context.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 "JS_Context.h"
 
 #include "JS_EventHandler.h"
 #include "JS_Runtime.h"
 #include "fpdfsdk/include/javascript/IJavaScript.h"
 #include "resource.h"
 
 /* -------------------------- CJS_Context -------------------------- */
 
 CJS_Context::CJS_Context(CJS_Runtime* pRuntime)
     : m_pRuntime(pRuntime), m_bBusy(FALSE), m_bMsgBoxEnable(TRUE) {
   m_pEventHandler = new CJS_EventHandler(this);
 }
 
 CJS_Context::~CJS_Context() {
   delete m_pEventHandler;
 }
 
 CPDFSDK_Document* CJS_Context::GetReaderDocument() {
   return m_pRuntime->GetReaderDocument();
 }
 
 CPDFDoc_Environment* CJS_Context::GetReaderApp() {
-  ASSERT(m_pRuntime != NULL);
-
   return m_pRuntime->GetReaderApp();
 }
 
 FX_BOOL CJS_Context::RunScript(const CFX_WideString& script,
                                CFX_WideString* info) {
   v8::Isolate::Scope isolate_scope(m_pRuntime->GetIsolate());
   v8::HandleScope handle_scope(m_pRuntime->GetIsolate());
   v8::Local<v8::Context> context = m_pRuntime->NewJSContext();
   v8::Context::Scope context_scope(context);
 
@@ skipping 232 matching lines @@
 }
 
 void CJS_Context::OnBatchExec(CPDFSDK_Document* pTarget) {
   m_pEventHandler->OnBatchExec(pTarget);
 }
 
 void CJS_Context::OnMenu_Exec(CPDFSDK_Document* pTarget,
                               const CFX_WideString& strTargetName) {
   m_pEventHandler->OnMenu_Exec(pTarget, strTargetName);
 }