Add support for touch-action: pinch-zoom.

third_party/WebKit/LayoutTests/fast/css/touch-action-parsing.html

Index: third_party/WebKit/LayoutTests/fast/css/touch-action-parsing.html
diff --git a/third_party/WebKit/LayoutTests/fast/css/touch-action-parsing.html b/third_party/WebKit/LayoutTests/fast/css/touch-action-parsing.html
index c53d146f8581a35ec5371cbaf886a3ea2d01b406..ac92d3271df2c692f490dde18aabd4cfc4ca8c6e 100644
--- a/third_party/WebKit/LayoutTests/fast/css/touch-action-parsing.html
+++ b/third_party/WebKit/LayoutTests/fast/css/touch-action-parsing.html
@@ -23,6 +23,7 @@
 <div class="test" id="explicit-pan-y" style="touch-action: pan-y;" expected="pan-y"></div>
 <div class="test" id="explicit-pan-up" style="touch-action: pan-up;" expected="pan-up"></div>
 <div class="test" id="explicit-pan-down" style="touch-action: pan-down;" expected="pan-down"></div>
+<div class="test" id="explicit-pinch-zoom" style="touch-action: pinch-zoom;" expected="pinch-zoom"></div>
 <div class="test" id="explicit-pan-x-pan-y" style="touch-action: pan-x pan-y;" expected="pan-x pan-y"></div>
 <div class="test" id="explicit-pan-y-pan-x" style="touch-action: pan-y pan-x;" expected="pan-x pan-y"></div>
 <div class="test" id="explicit-pan-left-pan-up" style="touch-action: pan-left pan-up;" expected="pan-left pan-up"></div>
@@ -33,6 +34,9 @@
 <div class="test" id="explicit-pan-up-pan-right" style="touch-action: pan-up pan-right;" expected="pan-right pan-up"></div>
 <div class="test" id="explicit-pan-down-pan-left" style="touch-action: pan-down pan-left;" expected="pan-left pan-down"></div>
 <div class="test" id="explicit-pan-down-pan-right" style="touch-action: pan-down pan-right;" expected="pan-right pan-down"></div>
+<div class="test" id="explicit-pan-down-pan-right-pinch-zoom" style="touch-action: pan-down pan-right pinch-zoom;" expected="pan-right pan-down pinch-zoom"></div>
+<div class="test" id="explicit-pinch-zoom-pan-x-pan-up" style="touch-action: pinch-zoom pan-x pan-up;" expected="pan-x pan-up pinch-zoom"></div>
+<div class="test" id="explicit-pinch-zoom-pan-x-pan-y" style="touch-action: pinch-zoom pan-x pan-y;" expected="manipulation"></div>
 <div class="test" id="explicit-manipulation" style="touch-action: manipulation;" expected="manipulation"></div>
 <div class="test" id="explicit-none" style="touch-action: none;" expected="none"></div>
 <div class="test" id="explicit-invalid-1" style="touch-action: bogus;" expected="auto"></div>
@@ -48,6 +52,7 @@
 <div class="test" id="explicit-invalid-11" style="touch-action: pan-y pan-down;" expected="auto"></div>
 <div class="test" id="explicit-invalid-12" style="touch-action: pan-left pan-right;" expected="auto"></div>
 <div class="test" id="explicit-invalid-13" style="touch-action: pan-up pan-down;" expected="auto"></div>
+<div class="test" id="explicit-invalid-14" style="touch-action: pinch-zoom none;" expected="auto"></div>
 <div style="touch-action: none;">
   <div class="test" id="not-inherited" expected="auto"></div>
   <div class="test" id="inherit" style="touch-action: inherit;" expected="none"></div>