Changes the bounds being sent for occlusion from physical pixels to DIP

cc/test/layer_test_common.cc

Index: cc/test/layer_test_common.cc
diff --git a/cc/test/layer_test_common.cc b/cc/test/layer_test_common.cc
index a6753ce9f528179e7f340af03182e9ca2924a140..6398fcb37d827afe77c8f0e5a5d79dcd718af717 100644
--- a/cc/test/layer_test_common.cc
+++ b/cc/test/layer_test_common.cc
@@ -48,9 +48,11 @@ void LayerTestCommon::VerifyQuadsExactlyCoverRect(const QuadList& quads,
   Region remaining = rect;
 
   for (auto iter = quads.cbegin(); iter != quads.cend(); ++iter) {
+    EXPECT_TRUE(iter->rect.Contains(iter->visible_rect));

[danakj, 2017/02/10 20:35:44]

In order to exactly cover, would the rects not need to be equal? Or am I
thinking about this wrong.

[malaykeshav, 2017/02/10 21:02:50]

I think its: all the |quads| (visible) combined should exactly cover |remaining|
region.

[danakj, 2017/02/10 22:06:45]

OK I think you're right, and checking that the visible rect isn't exceeding the
quads is good.

+
     gfx::RectF quad_rectf = MathUtil::MapClippedRect(
         iter->shared_quad_state->quad_to_target_transform,
-        gfx::RectF(iter->rect));
+        gfx::RectF(iter->visible_rect));
 
     // Before testing for exact coverage in the integer world, assert that
     // rounding will not round the rect incorrectly.