[Telemetry] Rename PngBitmap->Bitmap and move it to core.

tools/telemetry/telemetry/core/backends/png_bitmap_unittest.py

Index: tools/telemetry/telemetry/core/backends/png_bitmap_unittest.py
diff --git a/tools/telemetry/telemetry/core/backends/png_bitmap_unittest.py b/tools/telemetry/telemetry/core/backends/png_bitmap_unittest.py
deleted file mode 100644
index 0e3c233c8cd7e1f58a977444fe3f58d2080cb9d6..0000000000000000000000000000000000000000
--- a/tools/telemetry/telemetry/core/backends/png_bitmap_unittest.py
+++ /dev/null
@@ -1,82 +0,0 @@
-# Copyright 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import unittest
-import os
-
-from telemetry.core import util
-from telemetry.core.backends import png_bitmap
-
-
-# This is a simple base64 encoded 2x2 PNG which contains, in order, a single
-# Red, Yellow, Blue, and Green pixel.
-test_png = """
-iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAIAAAD91
-JpzAAAAAXNSR0IArs4c6QAAAAlwSFlzAAALEwAACx
-MBAJqcGAAAABZJREFUCNdj/M/AwPCfgYGB4T/DfwY
-AHAAD/iOWZXsAAAAASUVORK5CYII=
-"""
-
-
-test_png_path = os.path.join(util.GetUnittestDataDir(), 'test_png.png')
-test_png_2_path = os.path.join(util.GetUnittestDataDir(), 'test_png_2.png')
-
-
-class PngBitmapTest(unittest.TestCase):
-  def testReadFromBase64(self):
-    png = png_bitmap.PngBitmap.FromBase64(test_png)
-
-    self.assertEquals(2, png.width)
-    self.assertEquals(2, png.height)
-
-    png.GetPixelColor(0, 0).AssertIsRGB(255, 0, 0)
-    png.GetPixelColor(1, 1).AssertIsRGB(0, 255, 0)
-    png.GetPixelColor(0, 1).AssertIsRGB(0, 0, 255)
-    png.GetPixelColor(1, 0).AssertIsRGB(255, 255, 0)
-
-  def testReadFromFile(self):
-    file_png = png_bitmap.PngBitmap.FromFile(test_png_path)
-
-    self.assertEquals(2, file_png.width)
-    self.assertEquals(2, file_png.height)
-
-    file_png.GetPixelColor(0, 0).AssertIsRGB(255, 0, 0)
-    file_png.GetPixelColor(1, 1).AssertIsRGB(0, 255, 0)
-    file_png.GetPixelColor(0, 1).AssertIsRGB(0, 0, 255)
-    file_png.GetPixelColor(1, 0).AssertIsRGB(255, 255, 0)
-
-  def testIsEqual(self):
-    png = png_bitmap.PngBitmap.FromBase64(test_png)
-    file_png = png_bitmap.PngBitmap.FromFile(test_png_path)
-    self.assertTrue(png.IsEqual(file_png))
-
-  def testDiff(self):
-    file_png = png_bitmap.PngBitmap.FromFile(test_png_path)
-    file_png_2 = png_bitmap.PngBitmap.FromFile(test_png_2_path)
-
-    diff_png = file_png.Diff(file_png)
-
-    self.assertEquals(2, diff_png.width)
-    self.assertEquals(2, diff_png.height)
-
-    diff_png.GetPixelColor(0, 0).AssertIsRGB(0, 0, 0)
-    diff_png.GetPixelColor(1, 1).AssertIsRGB(0, 0, 0)
-    diff_png.GetPixelColor(0, 1).AssertIsRGB(0, 0, 0)
-    diff_png.GetPixelColor(1, 0).AssertIsRGB(0, 0, 0)
-
-    diff_png = file_png.Diff(file_png_2)
-
-    self.assertEquals(3, diff_png.width)
-    self.assertEquals(3, diff_png.height)
-
-    diff_png.GetPixelColor(0, 0).AssertIsRGB(0, 255, 255)
-    diff_png.GetPixelColor(1, 1).AssertIsRGB(255, 0, 255)
-    diff_png.GetPixelColor(0, 1).AssertIsRGB(255, 255, 0)
-    diff_png.GetPixelColor(1, 0).AssertIsRGB(0, 0, 255)
-
-    diff_png.GetPixelColor(0, 2).AssertIsRGB(255, 255, 255)
-    diff_png.GetPixelColor(1, 2).AssertIsRGB(255, 255, 255)
-    diff_png.GetPixelColor(2, 0).AssertIsRGB(255, 255, 255)
-    diff_png.GetPixelColor(2, 1).AssertIsRGB(255, 255, 255)
-    diff_png.GetPixelColor(2, 2).AssertIsRGB(255, 255, 255)