Implement touch-action pan-x/pan-y handling on the main thread

Source/web/tests/TouchActionTest.cpp

Index: Source/web/tests/TouchActionTest.cpp
diff --git a/Source/web/tests/TouchActionTest.cpp b/Source/web/tests/TouchActionTest.cpp
old mode 100644
new mode 100755
index 56cffb3bb2dc64da76fb608d36b7f615190c3441..e2a0aa3f0c99dec462a3c3dbcada840edad3be13
--- a/Source/web/tests/TouchActionTest.cpp
+++ b/Source/web/tests/TouchActionTest.cpp
@@ -262,6 +262,12 @@ void TouchActionTest::runTestOnTree(WebCore::Node* root, WebView* webView, Touch
                 if (client.touchActionSetCount()) {
                     if (expectedAction == "none") {
                         EXPECT_EQ(WebTouchActionNone, client.lastTouchAction()) << failureContextPos;
+                    } else if (expectedAction == "pan-x") {
+                        EXPECT_EQ(WebTouchActionPanX, client.lastTouchAction()) << failureContextPos;
+                    } else if (expectedAction == "pan-y") {
+                        EXPECT_EQ(WebTouchActionPanY, client.lastTouchAction()) << failureContextPos;
+                    } else if (expectedAction == "pan-x-y") {
+                        EXPECT_EQ((WebTouchActionPanX | WebTouchActionPanY), client.lastTouchAction()) << failureContextPos;
                     } else {
                         FAIL() << "Unrecognized expected-action \"" << expectedAction.string().ascii().data()
                             << "\" " << failureContextPos;
@@ -313,4 +319,9 @@ TEST_F(TouchActionTest, ShadowDOM)
     runShadowDOMTest("touch-action-shadow-dom.html");
 }
 
+TEST_F(TouchActionTest, Pan)
+{
+    runTouchActionTest("touch-action-pan.html");
+}
+
 }