Touch event flag should control only DOM event firing.

content/browser/renderer_host/input/touch_action_browsertest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <utility>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/macros.h"
@@ skipping 92 matching lines @@
 
     // We need to wait until at least one frame has been composited
     // otherwise the injection of the synthetic gestures may get
     // dropped because of MainThread/Impl thread sync of touch event
     // regions.
     frame_watcher->WaitFrames(1);
   }
 
   // ContentBrowserTest:
   void SetUpCommandLine(base::CommandLine* cmd) override {
-    cmd->AppendSwitchASCII(switches::kTouchEvents,
-                           switches::kTouchEventsEnabled);
     // TODO(rbyers): Remove this switch once touch-action ships.
     // http://crbug.com/241964
     cmd->AppendSwitch(switches::kEnableExperimentalWebPlatformFeatures);
   }
 
   int ExecuteScriptAndExtractInt(const std::string& script) {
     int value = 0;
     EXPECT_TRUE(content::ExecuteScriptAndExtractInt(
         shell(), "domAutomationController.send(" + script + ")", &value));
     return value;
@@ skipping 94 matching lines @@
       DoTouchScroll(gfx::Point(50, 150), gfx::Vector2d(0, 45), false);
   EXPECT_FALSE(scrolled);
 
   EXPECT_EQ(1, ExecuteScriptAndExtractInt("eventCounts.touchstart"));
   EXPECT_GE(ExecuteScriptAndExtractInt("eventCounts.touchmove"), 1);
   EXPECT_EQ(1, ExecuteScriptAndExtractInt("eventCounts.touchend"));
   EXPECT_EQ(0, ExecuteScriptAndExtractInt("eventCounts.touchcancel"));
 }
 
 }  // namespace content