SkCanvas::clear() should call down to devices even when the clip is empty.

SkDrawIter had a lovely, completely unused, option for this.  Oversight?

BUG=skia:

Review URL: https://codereview.chromium.org/735233003

1 files changed, 14 insertions, 0 deletions

diff --git a/tests/CanvasTest.cpp b/tests/CanvasTest.cpp
index 5437d5b2da..58be9dadb2 100644
--- a/tests/CanvasTest.cpp
+++ b/tests/CanvasTest.cpp
@@ -795,3 +795,17 @@ DEF_TEST(Canvas, reporter) {
 
     test_newraster(reporter);
 }
+
+// Make sure SkCanvas passes clear() calls down to its devices even when they're clipped out.
+DEF_TEST(Canvas_clear, reporter) {
+    SkBitmap bm;
+    bm.allocN32Pixels(1,1);
+
+    SkCanvas canvas(bm);
+    canvas.clear(SK_ColorRED);
+    REPORTER_ASSERT(reporter, SK_ColorRED == bm.getColor(0,0));
+
+    canvas.clipRect(SkRect::MakeEmpty());
+    canvas.clear(SK_ColorGREEN);
+    REPORTER_ASSERT(reporter, SK_ColorGREEN == bm.getColor(0,0));
+}