npm_modules: Fork bower_components into Polymer 0.4.0 and 0.5.0 versions

polymer_0.5.0/bower_components/gif.js/src/gif.worker.coffee

 GIFEncoder = require './GIFEncoder.js'
 
 renderFrame = (frame) ->
   encoder = new GIFEncoder frame.width, frame.height
 
   if frame.index is 0
     encoder.writeHeader()
   else
     encoder.firstFrame = false
 
   encoder.setTransparent frame.transparent
   encoder.setRepeat frame.repeat
   encoder.setDelay frame.delay
   encoder.setQuality frame.quality
   encoder.addFrame frame.data
   encoder.finish() if frame.last
 
   stream = encoder.stream()
   frame.data = stream.pages
   frame.cursor = stream.cursor
   frame.pageSize = stream.constructor.pageSize
 
   if frame.canTransfer
     transfer = (page.buffer for page in frame.data)
     self.postMessage frame, transfer
   else
     self.postMessage frame
 
 self.onmessage = (event) -> renderFrame event.data