cc: Allow SkImage::makeColorSpace to fail

cc/tiles/software_image_decode_cache.cc

Index: cc/tiles/software_image_decode_cache.cc
diff --git a/cc/tiles/software_image_decode_cache.cc b/cc/tiles/software_image_decode_cache.cc
index c41e24024e3d87acb48c2c6046e747fe6e196e79..f84ed1d8997dc0310397ae9fe1bfaca2069c7b46 100644
--- a/cc/tiles/software_image_decode_cache.cc
+++ b/cc/tiles/software_image_decode_cache.cc
@@ -587,7 +587,12 @@ SoftwareImageDecodeCache::GetOriginalSizeImageDecode(
                  "color conversion");
     image = image->makeColorSpace(target_color_space,
                                   SkTransferFunctionBehavior::kIgnore);
-    DCHECK(image);
+    // Because image is a lazy-decode image, the call to makeColorSpace will
+    // fail if image decode fails.
+    if (!image) {
+      decoded_pixels->Unlock();
+      return nullptr;
+    }
   }
   {
     TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"),