**Link to PDF file (or attach file here):**
[tocheckFile.pdf](https://github.com/mozilla/pdf.js/files/240714/tocheckFile.pdf)

**Configuration:**
- Web browser and its version: FF45.0.2, Chrome Version 50.0.2661.86 (64-bit) 
- Operating system and its version: Mac OSX El Capitan

**\- PDF.js version:**
PDFJS.version = '1.1.215';
PDFJS.build = 'c9a7498';

**Steps to reproduce the problem:**
1. Use the lib to generate a PDF preview.

**What is the expected behavior? (add screenshot)**
PDF preview should have rendered completely. (frog head should be complete)

**What went wrong? (add screenshot)**
<img width="952" alt="imagesnotrenderinginpreview" src="https://cloud.githubusercontent.com/assets/10231850/14889265/cecb2d64-0d66-11e6-98e1-da2d39728552.png">

See attached screenshot in regards to the pdf file

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):

operatorList,
    executionStartIdx,
    continueCallback,
    stepper
  ) {
    const argsArray = operatorList.argsArray;
    const fnArray = operatorList.fnArray;
    let i = executionStartIdx || 0;
    const argsArrayLen = argsArray.length;
    
    if (argsArrayLen === i) {
      return i;
    }
    const chunkOperations =
      argsArrayLen - i > EXECUTION_STEPS &&
      typeof continueCallback === "function";
    const endTime = chunkOperations ? Date.now() + EXECUTION_TIME : 0;
    let steps = 0;
    const commonObjs = this.commonObjs;
    const objs = this.objs;
    let fnId;
    while (true) {
      if (stepper !== undefined && i === stepper.nextBreakPoint) {
        stepper.breakIt(i, continueCallback);
        return i;
      }
      fnId = fnArray[i];
      if (fnId !== OPS.dependency) {
        this[fnId].apply(this, argsArray[i]);