Revert "Revert "Revert "Revert "Revert "Redefine the meaning of sample counts in GPU backend."""""

This reverts commit 5bb82cbecd740d21b92e8d2944280ab6eb6af7a6.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> Revert "Revert "Revert "Revert "Redefine the meaning of sample counts in GPU backend.""""
> 
> This reverts commit 18c52a7b52211de5d0dcd86dc048adef758c6c75.
> 
> Also relands "More sample count cleanup:" and "Add new GrContext queries for imagability, surfacability, and max sample count of color types"
> 
> 
> Bug: skia:
> Change-Id: I4028105a3a1f16ce3944e134619eb6245af6b947
> Reviewed-on: https://skia-review.googlesource.com/102940
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Brian Salomon <bsalomon@google.com>

TBR=egdaniel@google.com,bsalomon@google.com

Change-Id: Idee23be2f1719f0bdc9305043e95a2d589bee8d1
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/103220
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/tools/flags/SkCommonFlagsConfig.cpp b/tools/flags/SkCommonFlagsConfig.cpp
index 9d1c2dd..d38d70a 100644
--- a/tools/flags/SkCommonFlagsConfig.cpp
+++ b/tools/flags/SkCommonFlagsConfig.cpp
@@ -391,7 +391,7 @@
     bool seenUseDIText =false;
     bool useDIText = false;
     bool seenSamples = false;
-    int samples = 1;
+    int samples = 0;
     bool seenColor = false;
     SkColorType colorType = kRGBA_8888_SkColorType;
     SkAlphaType alphaType = kPremul_SkAlphaType;