Get rid of graphics layer anchor points, and replace with transform origin.

cc/layers/layer_utils_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layers/layer_utils.h"
 
 #include "cc/animation/transform_operations.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/test/animation_test_common.h"
 #include "cc/test/fake_impl_proxy.h"
@@ skipping 147 matching lines @@
   end.AppendRotate(1.f, 0.f, 0.f, 90.f);
   AddAnimatedTransformToLayer(child(), duration, start, end);
 
   parent()->SetBounds(gfx::Size(350, 200));
 
   gfx::Size bounds(100, 100);
   child()->SetDrawsContent(true);
   child()->draw_properties().screen_space_transform_is_animating = true;
   child()->SetPosition(gfx::PointF(150.f, 50.f));
   child()->SetBounds(bounds);
+  child()->SetTransformOrigin(
+      gfx::Point3F(bounds.width() * 0.5f, bounds.height() * 0.5f, 0));
 
   gfx::BoxF box;
   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
   EXPECT_TRUE(success);
   gfx::BoxF expected(150.f, 50.f, -50.f, 100.f, 100.f, 100.f);
   EXPECT_BOXF_EQ(expected, box);
 }
 
 TEST_F(LayerUtilsGetAnimationBoundsTest, RotateXWithPerspective) {
   double duration = 1.0;
 
   TransformOperations start;
   start.AppendRotate(1.f, 0.f, 0.f, 0.f);
   TransformOperations end;
   end.AppendRotate(1.f, 0.f, 0.f, 90.f);
   AddAnimatedTransformToLayer(child(), duration, start, end);
 
   // Make the anchor point not the default 0.5 value and line up with the
   // child center to make the math easier.
-  parent()->SetAnchorPoint(gfx::PointF(0.375f, 0.375f));
+  parent()->SetTransformOrigin(
+      gfx::Point3F(0.375f * 400.f, 0.375f * 400.f, 0.f));
   parent()->SetBounds(gfx::Size(400, 400));
 
   gfx::Transform perspective;
   perspective.ApplyPerspectiveDepth(100.f);
   parent()->SetTransform(perspective);
 
   gfx::Size bounds(100, 100);
   child()->SetDrawsContent(true);
   child()->draw_properties().screen_space_transform_is_animating = true;
   child()->SetPosition(gfx::PointF(100.f, 100.f));
   child()->SetBounds(bounds);
+  child()->SetTransformOrigin(
+      gfx::Point3F(bounds.width() * 0.5f, bounds.height() * 0.5f, 0));
 
   gfx::BoxF box;
   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
   EXPECT_TRUE(success);
   gfx::BoxF expected(50.f, 50.f, -33.333336f, 200.f, 200.f, 133.333344f);
   EXPECT_BOXF_EQ(expected, box);
 }
 
 TEST_F(LayerUtilsGetAnimationBoundsTest, RotateZ) {
   double duration = 1.0;
 
   TransformOperations start;
   start.AppendRotate(0.f, 0.f, 1.f, 0.f);
   TransformOperations end;
   end.AppendRotate(0.f, 0.f, 1.f, 90.f);
   AddAnimatedTransformToLayer(child(), duration, start, end);
 
   parent()->SetBounds(gfx::Size(350, 200));
 
   gfx::Size bounds(100, 100);
   child()->SetDrawsContent(true);
   child()->draw_properties().screen_space_transform_is_animating = true;
   child()->SetPosition(gfx::PointF(150.f, 50.f));
   child()->SetBounds(bounds);
+  child()->SetTransformOrigin(
+      gfx::Point3F(bounds.width() * 0.5f, bounds.height() * 0.5f, 0));
 
   gfx::BoxF box;
   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
   EXPECT_TRUE(success);
   float diag = diagonal(bounds.width(), bounds.height());
   gfx::BoxF expected(150.f + 0.5f * (bounds.width() - diag),
                      50.f + 0.5f * (bounds.height() - diag),
                      0.f,
                      diag,
                      diag,
@@ skipping 18 matching lines @@
   child()->SetPosition(gfx::PointF(150.f, 50.f));
   child()->SetBounds(bounds);
 
   gfx::BoxF box;
   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
   EXPECT_FALSE(success);
 }
 
 }  // namespace
 }  // namespace cc