Never include ancestorLayer transform when testing for overlap.

LayoutTests/compositing/overlap-test-with-filter-expected.txt

Index: LayoutTests/compositing/overlap-test-with-filter-expected.txt
diff --git a/LayoutTests/platform/android/compositing/iframes/connect-compositing-iframe3-expected.txt b/LayoutTests/compositing/overlap-test-with-filter-expected.txt
similarity index 58%
copy from LayoutTests/platform/android/compositing/iframes/connect-compositing-iframe3-expected.txt
copy to LayoutTests/compositing/overlap-test-with-filter-expected.txt
index b1bfb015db141970159c473a163d224fca932ba0..887719efbc30716ef878e31f3e4addf440460f52 100644
--- a/LayoutTests/platform/android/compositing/iframes/connect-compositing-iframe3-expected.txt
+++ b/LayoutTests/compositing/overlap-test-with-filter-expected.txt
@@ -1,4 +1,3 @@
-
 {
   "bounds": [800, 600],
   "children": [
@@ -8,31 +7,30 @@
       "drawsContent": true,
       "children": [
         {
-          "position": [8, 8],
-          "bounds": [370, 220],
+          "bounds": [300, 100],
           "drawsContent": true,
           "children": [
             {
-              "position": [35, 35],
+              "bounds": [300, 100],
               "children": [
                 {
-                  "bounds": [285, 150],
+                  "bounds": [300, 100],
                   "children": [
                     {
                       "children": [
                         {
-                          "bounds": [285, 230],
+                          "bounds": [300, 100],
                           "children": [
                             {
-                              "bounds": [285, 230],
+                              "bounds": [300, 100],
                               "drawsContent": true,
+                              "backgroundColor": "#FFFF00",
                               "children": [
                                 {
-                                  "position": [18, 10],
-                                  "bounds": [210, 210],
-                                  "contentsOpaque": true,
+                                  "position": [8, 8],
+                                  "bounds": [284, 84],
                                   "drawsContent": true,
-                                  "backgroundColor": "#0000FF"
+                                  "backgroundColor": "#FFFF00"
                                 }
                               ]
                             }
@@ -41,15 +39,22 @@
                       ]
                     }
                   ]
-                },
-                {
-                  "position": [285, 0],
-                  "bounds": [15, 150],
-                  "drawsContent": true
                 }
               ]
             }
           ]
+        },
+        {
+          "bounds": [300, 100],

[chrishtr, 2015/08/27 17:01:00]

This layer would be absent without the fix in this CL, because the transform
would be double-applied.

+          "contentsOpaque": true,
+          "drawsContent": true,
+          "backgroundColor": "#D3D3D3",
+          "transform": [
+            [1, 0, 0, 0],
+            [0, 1, 0, 0],
+            [0, 0, 1, 0],
+            [151, 0, 0, 1]
+          ]
         }
       ]
     }
@@ -61,18 +66,18 @@
 Frame: '<!--framePath //<!--frame0-->-->'
 --------
 {
-  "bounds": [285, 230],
+  "bounds": [300, 100],
   "children": [
     {
-      "bounds": [285, 230],
+      "bounds": [300, 100],
       "drawsContent": true,
+      "backgroundColor": "#FFFF00",
       "children": [
         {
-          "position": [18, 10],
-          "bounds": [210, 210],
-          "contentsOpaque": true,
+          "position": [8, 8],
+          "bounds": [284, 84],
           "drawsContent": true,
-          "backgroundColor": "#0000FF"
+          "backgroundColor": "#FFFF00"
         }
       ]
     }