Allow using a larger-than-necessary texture as cached render pass backing

cc/test/pixel_test_utils.cc

Index: cc/test/pixel_test_utils.cc
diff --git a/cc/test/pixel_test_utils.cc b/cc/test/pixel_test_utils.cc
index ad455c0e37927b95f411699d722a2e8b7f0e9296..6e803485959f45e453c42bb95b223917cb4d2038 100644
--- a/cc/test/pixel_test_utils.cc
+++ b/cc/test/pixel_test_utils.cc
@@ -39,6 +39,7 @@ bool IsSameAsPNGFile(const SkBitmap& gen_bmp, FilePath ref_img_path) {
   SkBitmap ref_bmp;
   if (!ReadPNGFile(ref_img_path, &ref_bmp)) {
     LOG(ERROR) << "Cannot read reference image: " << ref_img_path.value();
+    WritePNGFile(gen_bmp, ref_img_path);

[enne (OOO), 2012/12/12 23:41:54]

Is this intentional? (Also, the other change in this file, commented out?)

[jamesr, 2012/12/13 01:15:06]

no (although it's useful when debugging). removed

     return false;
   }
 
@@ -70,6 +71,7 @@ bool IsSameAsPNGFile(const SkBitmap& gen_bmp, FilePath ref_img_path) {
 
   if (diff_pixels_count != 0) {
     LOG(ERROR) << "Images differ by pixel count: " << diff_pixels_count;
+    //WritePNGFile(gen_bmp, FilePath("/tmp/actual.png"));
     return false;
   }