cc: DelegatedRenderer layer needs a surface if rotated.

cc/delegated_renderer_layer_impl_unittest.cc

 // Copyright 2012 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/delegated_renderer_layer_impl.h"
 
 #include "cc/append_quads_data.h"
 #include "cc/layer_tree_host_impl.h"
 #include "cc/layer_tree_impl.h"
 #include "cc/quad_sink.h"
@@ skipping 220 matching lines @@
     EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
 
     // If the DelegatedRendererLayer is axis aligned and has opacity 1, then
     // it has no need to be a renderSurface for the quads it carries.
     EXPECT_FALSE(m_delegatedRendererLayerPtr->renderSurface());
 
     m_hostImpl->drawLayers(frame);
     m_hostImpl->didDrawAllLayers(frame);
 }
 
-TEST_F(DelegatedRendererLayerImplTestSimple, DoesOwnARenderSurface)
+TEST_F(DelegatedRendererLayerImplTestSimple, DoesOwnARenderSurfaceForOpacity)
 {
     m_delegatedRendererLayerPtr->setOpacity(0.5f);
 
     LayerTreeHostImpl::FrameData frame;
     EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
 
     // This test case has quads from multiple layers in the delegated renderer,
     // so if the DelegatedRendererLayer has opacity < 1, it should end up with
     // a render surface.
     EXPECT_TRUE(m_delegatedRendererLayerPtr->renderSurface());
 
     m_hostImpl->drawLayers(frame);
     m_hostImpl->didDrawAllLayers(frame);
 }
 
+TEST_F(DelegatedRendererLayerImplTestSimple, DoesOwnARenderSurfaceForTransform)
+{
+    gfx::Transform rotation;
+    rotation.RotateAboutZAxis(30.0);
+    m_delegatedRendererLayerPtr->setTransform(rotation);
+
+    LayerTreeHostImpl::FrameData frame;
+    EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
+
+    // This test case has quads from multiple layers in the delegated renderer,
+    // so if the DelegatedRendererLayer has opacity < 1, it should end up with
+    // a render surface.
+    EXPECT_TRUE(m_delegatedRendererLayerPtr->renderSurface());
+
+    m_hostImpl->drawLayers(frame);
+    m_hostImpl->didDrawAllLayers(frame);
+}
+
 class DelegatedRendererLayerImplTestOwnSurface : public DelegatedRendererLayerImplTestSimple {
 public:
     DelegatedRendererLayerImplTestOwnSurface()
         : DelegatedRendererLayerImplTestSimple()
     {
         m_delegatedRendererLayerPtr->setForceRenderSurface(true);
     }
 };
 
 TEST_F(DelegatedRendererLayerImplTestOwnSurface, AddsRenderPasses)
@@ skipping 200 matching lines @@
     expected.Scale(1.5, 1.5);
     expected.Translate(7.0, 7.0);
     EXPECT_TRANSFORMATION_MATRIX_EQ(expected, sharedState->content_to_target_transform);
 
     m_hostImpl->drawLayers(frame);
     m_hostImpl->didDrawAllLayers(frame);
 }
 
 }  // namespace
 }  // namespace cc