Revert of text-combine should scale rather than fall back to none when wide

Revert of text-combine should scale rather than fall back to none when wide (patchset #5 id:180001 of https://codereview.chromium.org/799123003/)

Reason for revert:
Makes fast/text/text-combine-selection-crash.html crash on mac:
http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Ftext%2Ftext-combine-selection-crash.html&testType=layout-tests

Original issue's description:
> text-combine should scale rather than fall back to none when wide
> 
> This patch follows the CSS spec change in 2014 CR:
> Old: Combine if vertical flow and its width <= ~1em
> Current: Combine if vertical flow. Scale if width > ~1em
> 
> CR: http://www.w3.org/TR/css-writing-modes-3/#text-combine
> ED: http://dev.w3.org/csswg/css-writing-modes/#text-combine
> 
> In addition to the changes to RenderCombineText, this spec change has a
> small but pleasant side effect to our implementation. The
> RenderCombinedText delays the width calculation until it's needed. But the
> spec also says that it has to be treated as an U+FFFC OBJECT REPLACEMENT
> CHARACTER to line breakers when combined.
> 
> From these two facts, line breakers must be aware of RenderCombinedText and
> update it (combineText()) when needed. Also, the fact that combineText()
> could change the length of text brought additional complexity. We have a
> few calls to combineText() in line breakers, and still has some flakiness
> such as bug 312606. The new spec eliminates this complexity, so our line
> breakers are a bit cleaner, faster, and less flaky.
> 
> fast/text/font-variant-width.html had to be rewritten because it relied on
> the behavior of text-combine to fallback when wide.
> 
> BUG=433176, 312606
> TEST=fast/writing-mode/text-combine-compress.html
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=189235

TBR=kouhei@chromium.org,leviw@chromium.org,kojii@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=433176, 312606

[vsevik, 2015-01-30 09:47:38]

Created Revert of text-combine should scale rather than fall back to none when
wide

[commit-bot: I haz the power, 2015-01-30 09:47:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/881133003/1

[commit-bot: I haz the power, 2015-01-30 09:48:08]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-01-30 09:48:09]

Failed to apply patch for LayoutTests/TestExpectations:
While running patch -p1 --forward --force --no-backup-if-mismatch;
  patching file LayoutTests/TestExpectations
  Hunk #1 FAILED at 728.
  1 out of 1 hunk FAILED -- saving rejects to file
LayoutTests/TestExpectations.rej

Patch:       LayoutTests/TestExpectations
Index: LayoutTests/TestExpectations
diff --git a/LayoutTests/TestExpectations b/LayoutTests/TestExpectations
index
01f7aea182f67a431d27a4f6781ec2bc01e92ce1..22ff77ca42f0d64c62b959edb9f2360103a219c2
100644
--- a/LayoutTests/TestExpectations
+++ b/LayoutTests/TestExpectations
@@ -728,13 +728,7 @@
 
 crbug.com/311469 [ Mac ] svg/zoom/page/zoom-zoom-coords.xhtml [ Failure Pass ]
 
-crbug.com/433176 fast/dynamic/text-combine.html [ NeedsRebaseline ]
-crbug.com/433176 fast/text/decorations-with-text-combine.html [ NeedsRebaseline
]
-crbug.com/433176 fast/text/international/text-combine-image-test.html [
NeedsRebaseline ]
-crbug.com/433176
virtual/antialiasedtext/fast/text/decorations-with-text-combine.html [
NeedsRebaseline ]
-crbug.com/433176
virtual/antialiasedtext/fast/text/international/text-combine-image-test.html [
NeedsRebaseline ]
-crbug.com/433176
virtual/slimmingpaint/fast/text/decorations-with-text-combine.html [
NeedsRebaseline ]
-crbug.com/433176
virtual/slimmingpaint/fast/text/international/text-combine-image-test.html [
NeedsRebaseline ]
+crbug.com/312606 [ Mac ] fast/text/international/text-combine-image-test.html [
Failure Pass ]
 
 crbug.com/312613 fast/canvas/canvas-blending-pattern-over-gradient.html [ Pass
Timeout ]