Remove operator== from SkPaint

tests/PaintTest.cpp

Index: tests/PaintTest.cpp
diff --git a/tests/PaintTest.cpp b/tests/PaintTest.cpp
index e25c7c3f08a8efe41d3168050dd15e32b6cb7b6a..d71d12fc7428106773c0b393215d8881b3d8d125 100644
--- a/tests/PaintTest.cpp
+++ b/tests/PaintTest.cpp
@@ -133,6 +133,15 @@ static void test_filterlevel(skiatest::Reporter* reporter) {
     }
 }
 
+// Only useful for test_copy. Checks the fields that are set.
+static bool check_equal(const SkPaint& a, const SkPaint &b) {
+    return a.getLooper() == b.getLooper() &&
+           a.getMaskFilter() == b.getMaskFilter() &&
+           a.getStrokeWidth() == b.getStrokeWidth() &&
+           a.getStyle() == b.getStyle() &&
+           a.getTextAlign() == b.getTextAlign();
+}
+
 static void test_copy(skiatest::Reporter* reporter) {
     SkPaint paint;
     // set a few member variables
@@ -147,19 +156,19 @@ static void test_copy(skiatest::Reporter* reporter) {
 
     // copy the paint using the copy constructor and check they are the same
     SkPaint copiedPaint = paint;
-    REPORTER_ASSERT(reporter, paint == copiedPaint);
+    REPORTER_ASSERT(reporter, check_equal(paint, copiedPaint));
 
 #ifdef SK_BUILD_FOR_ANDROID
     // the copy constructor should preserve the Generation ID
     uint32_t paintGenID = paint.getGenerationID();
     uint32_t copiedPaintGenID = copiedPaint.getGenerationID();
     REPORTER_ASSERT(reporter, paintGenID == copiedPaintGenID);
-    REPORTER_ASSERT(reporter, !memcmp(&paint, &copiedPaint, sizeof(paint)));
+    REPORTER_ASSERT(reporter, check_equal(paint, copiedPaint));
 #endif
 
     // copy the paint using the equal operator and check they are the same
     copiedPaint = paint;
-    REPORTER_ASSERT(reporter, paint == copiedPaint);
+    REPORTER_ASSERT(reporter, check_equal(paint, copiedPaint));
 
 #ifdef SK_BUILD_FOR_ANDROID
     // the equals operator should increment the Generation ID
@@ -173,8 +182,8 @@ static void test_copy(skiatest::Reporter* reporter) {
     SkPaint cleanPaint;
     paint.reset();
     copiedPaint.reset();
-    REPORTER_ASSERT(reporter, cleanPaint == paint);
-    REPORTER_ASSERT(reporter, cleanPaint == copiedPaint);
+    REPORTER_ASSERT(reporter, check_equal(cleanPaint, paint));
+    REPORTER_ASSERT(reporter, check_equal(cleanPaint, copiedPaint));
 
 #ifdef SK_BUILD_FOR_ANDROID
     // the reset function should increment the Generation ID