How to stop page numbering from resetting for each chapter

Question

How can I stop LaTeX from resetting page numbers whenever a new chapter starts? I would like to have a single global page number for the whole report. I don't think I am changing the default page numbering in any way with what I have in my preamble, but just in case, here it is:

\documentclass[12pt]{report}
\usepackage[english]{babel}

%use a new bibliography for each chapter
\usepackage[square,sort,comma,numbers,sectionbib]{natbib}
\usepackage{chapterbib}  

%math environment
\usepackage{amsmath}
 \numberwithin{equation}{chapter}

%graphics environment
\usepackage{graphicx}

%allow figure captions to cross between pages
\usepackage{caption}
    \DeclareCaptionLabelFormat{adja-page}{\\#1 #2 }

% reset figure numbers between chapters
\usepackage{chngcntr}
 \counterwithin{figure}{chapter}

% flush all floats whenever a new (sub(sub))section start
\usepackage{placeins}
\let\Oldsection\section
\renewcommand{\section}{\FloatBarrier\Oldsection}
\let\Oldsubsection\subsection
\renewcommand{\subsection}{\FloatBarrier\Oldsubsection}
\let\Oldsubsubsection\subsubsection
\renewcommand{\subsubsection}{\FloatBarrier\Oldsubsubsection}

%double spaced
\usepackage{setspace}
\doublespacing

%smaller margins
\usepackage[margin=1.25in]{geometry}

%define display style for large operators in rational equations
\newcommand\ddfrac[2]{\frac{\displaystyle #1}{\displaystyle #2}}
\newcommand\bfrac[2]{\left(\frac{ #1}{ #2}\right)}


%define a chapter author environment
\makeatletter
\newcommand{\chapterauthor}[1]{%
  {\centering\parindent0pt\vspace*{0pt}%
  #1%
  \par\nobreak\vspace*{25pt}}
  \@afterheading%
}
\makeatother

%no header
\pagestyle{plain}

%make bibliographies single spaced
\usepackage{etoolbox}
\AtBeginEnvironment{thebibliography}{\linespread{1}\selectfont}

%include sub(sub(sub)))sections in TOC
\setcounter{tocdepth}{4}
\setcounter{secnumdepth}{4}



\begin{document}
\include{title}
\tableofcontents
\vfill
\newpage
\include{intro}
\include{chap1}
\include{chap2}
\include{chap3}
\end{document}

Within each \included file, I have something like this:

\chapter{chap1}
\chapterauthor{author list}
\begin{abstract}
bla bla
\end{abstract}
\section{Introduction}
bla bla
...

One of the includes has this in its entirety, and it resets page numbers:

\chapter{title}
\cite{Merchant2010}
\bibliographystyle{ieeetr}
\bibliography{bib}