Fix a zooming bug with EM MQs

LayoutTests/fast/css/zoom-media-queries-expected.txt

Index: LayoutTests/fast/css/zoom-media-queries-expected.txt
diff --git a/LayoutTests/fast/css/zoom-media-queries-expected.txt b/LayoutTests/fast/css/zoom-media-queries-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..43280db6a482e5681909a03f93008ed8589fe31f
--- /dev/null
+++ b/LayoutTests/fast/css/zoom-media-queries-expected.txt
@@ -0,0 +1,60 @@
+CONSOLE MESSAGE: line 24: px:15.989583015441895px

[abarth-chromium, 2013/05/31 08:11:21]

Are these values repeatable across different platforms?  They seem like they're
too precise.  Can we round them and still test the issue?

+CONSOLE MESSAGE: line 34: px style not changed 1
+CONSOLE MESSAGE: line 24: em:15.989583015441895px
+CONSOLE MESSAGE: line 34: em style not changed 1
+CONSOLE MESSAGE: line 24: px:15.99392318725586px
+CONSOLE MESSAGE: line 34: px style not changed 2
+CONSOLE MESSAGE: line 24: em:15.99392318725586px

[kenneth.r.christiansen, 2013/05/31 08:21:21]

Something like shouldBe() or assert_equal() would be nicer to use

+CONSOLE MESSAGE: line 34: em style not changed 2
+CONSOLE MESSAGE: line 24: px:15.995731353759766px
+CONSOLE MESSAGE: line 34: px style not changed 3
+CONSOLE MESSAGE: line 24: em:15.995731353759766px
+CONSOLE MESSAGE: line 34: em style not changed 3
+CONSOLE MESSAGE: line 24: px:15.997239112854004px
+CONSOLE MESSAGE: line 34: px style not changed 4
+CONSOLE MESSAGE: line 24: em:15.997239112854004px
+CONSOLE MESSAGE: line 34: em style not changed 4
+CONSOLE MESSAGE: line 24: px:15.999750137329102px
+CONSOLE MESSAGE: line 34: px style not changed 5
+CONSOLE MESSAGE: line 24: em:15.999750137329102px
+CONSOLE MESSAGE: line 34: em style not changed 5
+CONSOLE MESSAGE: line 24: px:63.996910095214844px
+CONSOLE MESSAGE: line 26: px style changed 6
+CONSOLE MESSAGE: line 24: em:63.996910095214844px
+CONSOLE MESSAGE: line 26: em style changed 6
+CONSOLE MESSAGE: line 24: px:15.999750137329102px
+CONSOLE MESSAGE: line 30: px style changed back 5
+CONSOLE MESSAGE: line 24: em:15.999750137329102px
+CONSOLE MESSAGE: line 30: em style changed back 5
+CONSOLE MESSAGE: line 24: px:15.997239112854004px
+CONSOLE MESSAGE: line 34: px style not changed 4
+CONSOLE MESSAGE: line 24: em:15.997239112854004px
+CONSOLE MESSAGE: line 34: em style not changed 4
+CONSOLE MESSAGE: line 24: px:15.995731353759766px
+CONSOLE MESSAGE: line 34: px style not changed 3
+CONSOLE MESSAGE: line 24: em:15.995731353759766px
+CONSOLE MESSAGE: line 34: em style not changed 3
+CONSOLE MESSAGE: line 24: px:15.99392318725586px
+CONSOLE MESSAGE: line 34: px style not changed 2
+CONSOLE MESSAGE: line 24: em:15.99392318725586px
+CONSOLE MESSAGE: line 34: em style not changed 2
+CONSOLE MESSAGE: line 24: px:15.989583015441895px
+CONSOLE MESSAGE: line 34: px style not changed 1
+CONSOLE MESSAGE: line 24: em:15.989583015441895px
+CONSOLE MESSAGE: line 34: em style not changed 1
+layer at (0,0) size 800x600

[abarth-chromium, 2013/05/31 08:11:21]

Does this test need to be a render tree test?  It seems like it should be
dumpAsText instead.

+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderBlock {HTML} at (0,0) size 800x600
+    RenderBody {BODY} at (8,8) size 784x584
+      RenderBlock {DIV} at (0,0) size 784x16
+        RenderText {#text} at (0,-2) size 128x19
+          text run at (0,-2) width 128: "This is affected by px"
+      RenderBlock {DIV} at (0,16) size 784x16
+        RenderText {#text} at (0,-2) size 131x19
+          text run at (0,-2) width 131: "This is affected by em"
+      RenderBlock (anonymous) at (0,32) size 784x20
+        RenderText {#text} at (0,0) size 58x19
+          text run at (0,0) width 58: "some text"
+        RenderText {#text} at (0,0) size 0x0
+        RenderText {#text} at (0,0) size 0x0