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

Fixes gpu config default samples to be 1 and updates config parsing test accordingly.

This reverts commit c1ce2f7966babaae0deb150f93f1227ee5af9285.

Bug: skia:
Change-Id: I456973b1f52ced85a2011ea10fc49449bfc5846f
Reviewed-on: https://skia-review.googlesource.com/102147
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/tests/TestConfigParsing.cpp b/tests/TestConfigParsing.cpp
index aa95ff7..7e90730 100644
--- a/tests/TestConfigParsing.cpp
+++ b/tests/TestConfigParsing.cpp
@@ -45,7 +45,7 @@
                     == GrContextFactory::kGL_ContextType);
     REPORTER_ASSERT(reporter, configs[0]->asConfigGpu()->getUseNVPR() == false);
     REPORTER_ASSERT(reporter, configs[0]->asConfigGpu()->getUseDIText() == false);
-    REPORTER_ASSERT(reporter, configs[0]->asConfigGpu()->getSamples() == 0);
+    REPORTER_ASSERT(reporter, configs[0]->asConfigGpu()->getSamples() == 1);
     REPORTER_ASSERT(reporter, configs[0]->asConfigGpu()->getColorType() == kRGBA_8888_SkColorType);
     REPORTER_ASSERT(reporter, configs[0]->asConfigGpu()->getColorSpace() == nullptr);
 #endif
@@ -240,7 +240,7 @@
                     GrContextFactory::kGL_ContextType);
     REPORTER_ASSERT(reporter, configs[0]->asConfigGpu()->getUseNVPR());
     REPORTER_ASSERT(reporter, !configs[0]->asConfigGpu()->getUseDIText());
-    REPORTER_ASSERT(reporter, configs[0]->asConfigGpu()->getSamples() == 0);
+    REPORTER_ASSERT(reporter, configs[0]->asConfigGpu()->getSamples() == 1);
     REPORTER_ASSERT(reporter, configs[1]->asConfigGpu()->getContextType() ==
                     GrContextFactory::kANGLE_D3D9_ES2_ContextType);
     REPORTER_ASSERT(reporter, configs[1]->asConfigGpu());
@@ -254,18 +254,18 @@
                     GrContextFactory::kGLES_ContextType);
     REPORTER_ASSERT(reporter, !configs[5]->asConfigGpu()->getUseNVPR());
     REPORTER_ASSERT(reporter, !configs[5]->asConfigGpu()->getUseDIText());
-    REPORTER_ASSERT(reporter, configs[5]->asConfigGpu()->getSamples() == 0);
+    REPORTER_ASSERT(reporter, configs[5]->asConfigGpu()->getSamples() == 1);
     REPORTER_ASSERT(reporter, configs[6]->asConfigGpu()->getContextType() ==
                               GrContextFactory::kGL_ContextType);
     REPORTER_ASSERT(reporter, !configs[6]->asConfigGpu()->getUseNVPR());
     REPORTER_ASSERT(reporter, !configs[6]->asConfigGpu()->getUseDIText());
-    REPORTER_ASSERT(reporter, configs[6]->asConfigGpu()->getSamples() == 0);
+    REPORTER_ASSERT(reporter, configs[6]->asConfigGpu()->getSamples() == 1);
 #ifdef SK_VULKAN
     REPORTER_ASSERT(reporter, configs[7]->asConfigGpu()->getContextType() ==
                               GrContextFactory::kVulkan_ContextType);
     REPORTER_ASSERT(reporter, !configs[7]->asConfigGpu()->getUseNVPR());
     REPORTER_ASSERT(reporter, !configs[7]->asConfigGpu()->getUseDIText());
-    REPORTER_ASSERT(reporter, configs[7]->asConfigGpu()->getSamples() == 0);
+    REPORTER_ASSERT(reporter, configs[7]->asConfigGpu()->getSamples() == 1);
 #endif
 #ifdef SK_METAL
     REPORTER_ASSERT(reporter, configs[8]->asConfigGpu()->getContextType() ==