Add flag for drawing layers to screen with Ganesh

The --force-direct-layer-drawing flag causes any layer that could be
drawn direct to the backbuffer to be drawn to the backbuffer using
Ganesh.  This flag also requires both the --enable-threaded-compositing
flag and the --enable-impl-side-painting flag to have any effect.

This patch also turns on testing for PictureDrawQuad using Ganesh in the
cc pixeltests.

BUG=none

Review URL: https://chromiumcodereview.appspot.com/13863015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@201362 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 11 insertions, 0 deletions

diff --git a/cc/debug/debug_colors.cc b/cc/debug/debug_colors.cc
index cc22297..bb0514c 100644
--- a/cc/debug/debug_colors.cc
+++ b/cc/debug/debug_colors.cc
@@ -136,6 +136,14 @@ int DebugColors::PictureTileBorderWidth(const LayerTreeImpl* tree_impl) {
   return Scale(1, tree_impl);
 }
 
+// Direct picture borders are chartreuse.
+SkColor DebugColors::DirectPictureBorderColor() {
+  return SkColorSetARGB(255, 127, 255, 0);
+}
+int DebugColors::DirectPictureBorderWidth(const LayerTreeImpl* tree_impl) {
+  return Scale(1, tree_impl);
+}
+
 // ======= Checkerboard colors =======
 
 // Non-debug checkerboards are grey.
diff --git a/cc/debug/debug_colors.h b/cc/debug/debug_colors.h
index 51be76f..407aa65 100644
--- a/cc/debug/debug_colors.h
+++ b/cc/debug/debug_colors.h
@@ -59,6 +59,9 @@ class DebugColors {
   static SkColor PictureTileBorderColor();
   static int PictureTileBorderWidth(const LayerTreeImpl* tree_impl);
 
+  static SkColor DirectPictureBorderColor();
+  static int DirectPictureBorderWidth(const LayerTreeImpl* tree_impl);
+
   static SkColor DefaultCheckerboardColor();
   static SkColor EvictedTileCheckerboardColor();
   static SkColor InvalidatedTileCheckerboardColor();