Add test data for spaceport benchmark.

chrome/test/data/third_party/spaceport/js/sprites/sources/spriteSheet.js

+define([ 'util/ensureCallback' ], function (ensureCallback) {
+    var IMAGE_SRC = 'assets/monstro-fada.png';
+
+    var FRAME_WIDTH = 37 * 3;
+    var FRAME_HEIGHT = 58 * 3;
+
+    var FRAMES_HORIZ = 6;
+    var FRAMES_VERT = 1;
+
+    var TOTAL_FRAMES = FRAMES_HORIZ * FRAMES_VERT;
+
+    function ImageSource(img) {
+        this.img = img;
+
+        var canvas = document.createElement('canvas');
+        canvas.width = FRAME_WIDTH;
+        canvas.height = FRAME_HEIGHT;
+
+        var context = canvas.getContext('2d');
+        context.globalCompositeOperation = 'copy';
+
+        this.frameImages = [ ];
+        this.frameInfos = [ ];
+        var x, y;
+        for (y = 0; y < FRAMES_VERT; ++y) {
+            for (x = 0; x < FRAMES_HORIZ; ++x) {
+                var px = x * FRAME_WIDTH;
+                var py = y * FRAME_WIDTH;
+
+                context.drawImage(
+                    img,
+                    px, py,
+                    FRAME_WIDTH, FRAME_HEIGHT,
+                    0, 0,
+                    FRAME_WIDTH, FRAME_HEIGHT
+                );
+
+                var frameImage = new window.Image();
+                frameImage.src = canvas.toDataURL();
+
+                this.frameInfos.push({
+                    x: px,
+                    y: py,
+                    width: FRAME_WIDTH,
+                    height: FRAME_HEIGHT,
+                    image: frameImage,
+                    sheetImage: img
+                });
+            }
+        }
+
+        // TODO Cycle frameInfos
+    }
+
+    ImageSource.prototype.getImage = function getImage(frameIndex) {
+        return this.frameInfos[frameIndex % TOTAL_FRAMES].image;
+    };
+
+    ImageSource.prototype.drawToCanvas = function drawToCanvas(context, dx, dy, frameIndex) {
+        var frameInfo = this.frameInfos[frameIndex % TOTAL_FRAMES];
+
+        context.drawImage(
+            frameInfo.sheetImage,
+            frameInfo.x, frameInfo.y,
+            frameInfo.width, frameInfo.height,
+            dx, dy,
+            frameInfo.width, frameInfo.height
+        );
+    };
+
+    ImageSource.prototype.getFrameInfo = function getFrameInfo(frameIndex) {
+        return this.frameInfos[frameIndex % TOTAL_FRAMES];
+    };
+
+    return function spriteSheet(callback) {
+        callback = ensureCallback(callback);
+
+        var img = new window.Image();
+        img.onload = function () {
+            var imageSource = new ImageSource(img);
+            callback(null, imageSource);
+        };
+        img.src = IMAGE_SRC;
+    };
+});