Use SkClipOp::kFoo instead of kFoo_SkClipOp from SkClipOpPriv

The SkClipOpPriv.h header will be going away soon, but a number of
places still use its kIntersect_SkClipOp definitions instead of the
equivalent SkClipOp::kIntersect. Besides updating these references,
a number of unnecessary includes to SkClipOpPriv.h are removed and
some test cases exercising expanding clip ops are deleted since they
will be unnecessary shortly.

Bug: skia:10208
Change-Id: I2bbdd6bb39869134c6a80ef2b4482e6cabdeb0b7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/436157
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
diff --git a/samplecode/SampleComplexClip.cpp b/samplecode/SampleComplexClip.cpp
index 4a73fc8..64e7af5 100644
--- a/samplecode/SampleComplexClip.cpp
+++ b/samplecode/SampleComplexClip.cpp
@@ -9,7 +9,6 @@
 #include "include/core/SkFont.h"
 #include "include/core/SkPath.h"
 #include "samplecode/Sample.h"
-#include "src/core/SkClipOpPriv.h"
 
 class ComplexClipView : public Sample {
     void onOnceBeforeDraw() override {
@@ -78,8 +77,8 @@
             SkClipOp    fOp;
             const char* fName;
         } gOps[] = { //extra spaces in names for measureText
-            {kIntersect_SkClipOp,         "Isect "},
-            {kDifference_SkClipOp,        "Diff " },
+            {SkClipOp::kIntersect,         "Isect "},
+            {SkClipOp::kDifference,        "Diff " },
         };
 
         canvas->translate(0, SkIntToScalar(40));