cc: Add remaining pixel tests for background blur.

This replicates the following layout tests with compositor pixel tests:
platform/chromium/compositing/filters/background-filter-blur-outsets.html
platform/chromium/compositing/filters/background-filter-blur-off-axis.html

The first test verifies that pixels from outside the bounds of the layer
with background blur are used to contribute to the background behind the
blurred layer.

The second test verifies that the blur layer's transform does not affect
the rendering of the blurred content behind it.

New test:
LayerTreeHostFiltersPixelTest.BackgroundFilterBlurOutsets
LayerTreeHostFiltersPixelTest.BackgroundFilterBlurOffAxis

R=jamesr,enne
BUG=191170
Depends on: https://codereview.chromium.org/12518026/


Review URL: https://chromiumcodereview.appspot.com/12571010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@191494 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 10 insertions, 0 deletions

diff --git a/cc/test/layer_tree_pixel_test.h b/cc/test/layer_tree_pixel_test.h
index e5f049a..ceddfab 100644
--- a/cc/test/layer_tree_pixel_test.h
+++ b/cc/test/layer_tree_pixel_test.h
@@ -3,6 +3,8 @@
 // found in the LICENSE file.
 
 #include "base/files/file_path.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "cc/layers/solid_color_layer.h"
 #include "cc/test/layer_tree_test.h"
 
@@ -11,6 +13,7 @@
 
 namespace cc {
 class LayerTreeHost;
+class PixelComparator;
 
 class LayerTreePixelTest : public LayerTreeTest {
  protected:
@@ -31,6 +34,11 @@ class LayerTreePixelTest : public LayerTreeTest {
 
   scoped_refptr<SolidColorLayer> CreateSolidColorLayer(gfx::Rect rect,
                                                        SkColor color);
+  scoped_refptr<SolidColorLayer> CreateSolidColorLayerWithBorder(
+      gfx::Rect rect,
+      SkColor color,
+      int border_width,
+      SkColor border_color);
 
   void RunPixelTest(scoped_refptr<Layer> content_root,
                     base::FilePath file_name);
@@ -42,6 +50,8 @@ class LayerTreePixelTest : public LayerTreeTest {
     kCSSGreen = 0xff008000,
   };
 
+  scoped_ptr<PixelComparator> pixel_comparator_;
+
  private:
   scoped_refptr<Layer> content_root_;
   base::FilePath ref_file_;