Disable accessible touch exploration by default.

chrome/browser/chromeos/accessibility/touch_exploration_controller_browsertest.cc

Index: chrome/browser/chromeos/accessibility/touch_exploration_controller_browsertest.cc
diff --git a/chrome/browser/chromeos/accessibility/touch_exploration_controller_browsertest.cc b/chrome/browser/chromeos/accessibility/touch_exploration_controller_browsertest.cc
index 1a2a8097bb2089ac5dbcc94495b2c1f2b6bc46e4..139ac84e693d614c1569b523a5d2b5d474ab73d0 100644
--- a/chrome/browser/chromeos/accessibility/touch_exploration_controller_browsertest.cc
+++ b/chrome/browser/chromeos/accessibility/touch_exploration_controller_browsertest.cc
@@ -5,8 +5,10 @@
 #include "ui/chromeos/touch_exploration_controller.h"
 
 #include "ash/accessibility_delegate.h"
+#include "ash/ash_switches.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
+#include "base/command_line.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "base/time/time.h"
 #include "chrome/browser/ui/browser.h"
@@ -34,6 +36,11 @@ class TouchExplorationTest : public InProcessBrowserTest {
   virtual ~TouchExplorationTest() {}
 
  protected:
+  virtual void SetUpCommandLine(base::CommandLine* command_line) OVERRIDE {
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
+        ash::switches::kAshEnableTouchExplorationMode);
+  }
+
   virtual void SetUpOnMainThread() OVERRIDE {
     // The RenderView for WebContents is created as a result of the
     // navigation to the New Tab page which is done as part of the test