Revert "Change clear() to respect the clip"

This reverts commit 3729469d6a12266037b697c2192768545e097ab0.

BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/778563002
diff --git a/tests/DeferredCanvasTest.cpp b/tests/DeferredCanvasTest.cpp
index 043fe33..da2d6b9 100644
--- a/tests/DeferredCanvasTest.cpp
+++ b/tests/DeferredCanvasTest.cpp
@@ -284,6 +284,14 @@
     canvas->restore();
     REPORTER_ASSERT(reporter, !canvas->isFreshFrame());
 
+    // Verify that a clear with clipping triggers a fresh frame
+    // (clear is not affected by clipping)
+    canvas->save();
+    canvas->clipRect(partialRect, SkRegion::kIntersect_Op, false);
+    canvas->clear(0x00000000);
+    canvas->restore();
+    REPORTER_ASSERT(reporter, canvas->isFreshFrame());
+
     // Verify that full frame rects with different forms of opaque paint
     // trigger frames to be marked as fresh
     {