Revert "SkImageInfoValidConversion (part 2)"

This reverts commit 94bd50cc5575b90eb60234399d69905b8651c27e.

Reason for revert: Still breaking roll

Original change's description:
> SkImageInfoValidConversion (part 2)
> 
> Disabling non-opaque -> opaque should be fine now that the
> Chrome unit test has been fixed.
> 
> BUG=skia:6021
> 
> Change-Id: I39f087e2695bdefacf793bd137931e3115ec58cb
> Reviewed-on: https://skia-review.googlesource.com/7121
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Matt Sarett <msarett@google.com>
> 

TBR=msarett@google.com,brianosman@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:6021

Change-Id: I79843ea6cf60ca94822446c548f3386706924ee6
Reviewed-on: https://skia-review.googlesource.com/7164
Commit-Queue: Matt Sarett <msarett@google.com>
Reviewed-by: Matt Sarett <msarett@google.com>
diff --git a/src/core/SkImageInfoPriv.h b/src/core/SkImageInfoPriv.h
index 72138ae..029aa93 100644
--- a/src/core/SkImageInfoPriv.h
+++ b/src/core/SkImageInfoPriv.h
@@ -69,9 +69,11 @@
         return false;
     }
 
-    if (kOpaque_SkAlphaType == dst.alphaType() && kOpaque_SkAlphaType != src.alphaType()) {
-        return false;
-    }
+    // FIXME (msarett): This is commented out until a fix to Chrome's gfx_unittest lands.
+    // In those tests, they write kPremul pixels to a kOpaque canvas.
+    //if (kOpaque_SkAlphaType == dst.alphaType() && kOpaque_SkAlphaType != src.alphaType()) {
+    //    return false;
+    //}
 
     return true;
 }