Revert of Revert of SK_DEBUG when DCHECK_ALWAYS_ON (patchset #1 id:1 of...

Revert of Revert of SK_DEBUG when DCHECK_ALWAYS_ON (patchset #1 id:1 of https://codereview.chromium.org/965113002/)

Reason for revert:
Revert did not help, restoring original patch

Original issue's description:
> Revert of SK_DEBUG when DCHECK_ALWAYS_ON (patchset #1 id:1 of https://codereview.chromium.org/966593002/)
>
> Reason for revert:
> May have caused FontRenderParamsTest failures on Linux debug bots.
>
> Original issue's description:
> > SK_DEBUG when DCHECK_ALWAYS_ON
> >
> > BUG=
> >
> > Committed: https://crrev.com/879405ae813ae4a9bcbd7684d3551420d4980383
> > Cr-Commit-Position: refs/heads/master@{#318557}
>
> TBR=jam@chromium.org,mtklein@google.com,mtklein@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=
>
> Committed: https://crrev.com/6197d8798bb0282d42b69c535b17bd2cd92c3b38
> Cr-Commit-Position: refs/heads/master@{#318581}

TBR=jam@chromium.org,mtklein@google.com,mtklein@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/963423003

Cr-Commit-Position: refs/heads/master@{#318600}

skia/config/SkUserConfig.h

@@ -79,6 +79,10 @@
 //#define SK_DEBUG
 //#define SK_RELEASE
 
+#ifdef DCHECK_ALWAYS_ON
+    #undef SK_RELEASE
+    #define SK_DEBUG
+#endif
 
 /*  If, in debugging mode, Skia needs to stop (presumably to invoke a debugger)
     it will call SK_CRASH(). If this is not defined it, it is defined in