Improve DamageTrackerTest.VerifyDamageForPerspectiveClippedLayer

cc/trees/damage_tracker_unittest.cc

 // Copyright 2011 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/trees/damage_tracker.h"
 
 #include <stddef.h>
 
 #include "cc/base/math_util.h"
 #include "cc/layers/layer_impl.h"
@@ skipping 478 matching lines @@
   // 498.544617) and size 0.056610 x 2.910767.  Instead, the correctly
   // transformed rect should actually be very huge (i.e. in theory, -infinity
   // on the left), and positioned so that the right-most bound rect will be
   // approximately 501 units in root surface space.
   //
 
   LayerImpl* root = CreateAndSetUpTestTreeWithOneSurface();
   LayerImpl* child = root->test_properties()->children[0];
 
   gfx::Transform transform;
-  transform.Translate3d(500.0, 500.0, 0.0);
+  transform.Translate3d(550.0, 500.0, 0.0);
   transform.ApplyPerspectiveDepth(1.0);
   transform.RotateAboutYAxis(45.0);
   transform.Translate3d(-50.0, -50.0, 0.0);
 
   // Set up the child
   child->SetPosition(gfx::PointF(0.f, 0.f));
   child->SetBounds(gfx::Size(100, 100));
   child->SetTransform(transform);
   root->layer_tree_impl()->property_trees()->needs_rebuild = true;
   EmulateDrawingOneFrame(root);
@@ skipping 1118 matching lines @@
     gfx::Rect root_damage_rect =
         root->render_surface()->damage_tracker()->current_damage_rect();
     gfx::Rect damage_we_care_about = gfx::Rect(i, i);
     EXPECT_LE(damage_we_care_about.right(), root_damage_rect.right());
     EXPECT_LE(damage_we_care_about.bottom(), root_damage_rect.bottom());
   }
 }
 
 }  // namespace
 }  // namespace cc