Make the workspace cycler animation parameters editable via chrome://gesture

chrome/browser/ui/webui/gesture_config_ui.cc

Index: chrome/browser/ui/webui/gesture_config_ui.cc
diff --git a/chrome/browser/ui/webui/gesture_config_ui.cc b/chrome/browser/ui/webui/gesture_config_ui.cc
index 6589f33d2027f251c851fd693b29e0e4beae144d..417d9edd787608195e0250ce3d62c8bba4af71a3 100644
--- a/chrome/browser/ui/webui/gesture_config_ui.cc
+++ b/chrome/browser/ui/webui/gesture_config_ui.cc
@@ -15,6 +15,10 @@
 #include "grit/browser_resources.h"
 #include "grit/generated_resources.h"
 
+#if defined(USE_ASH)
+#include "ash/wm/workspace/workspace_cycler_configuration.h"
+#endif  // USE_ASH
+
 /**
  * WebUI for configuring 'gesture.*' preference values used by
  * Chrome's gesture recognition system.
@@ -38,6 +42,11 @@ GestureConfigUI::GestureConfigUI(content::WebUI* web_ui)
       "setPreferenceValue",
       base::Bind(&GestureConfigUI::SetPreferenceValue,
                  base::Unretained(this)));
+  web_ui->RegisterMessageCallback(
+      "checkShouldAddWorkspaceCyclerConfiguration",
+      base::Bind(
+          &GestureConfigUI::CheckShouldAddWorkspaceCyclerConfiguration,
+          base::Unretained(this)));
 
   // Add required resources.
   html_source->AddResourcePath("gesture_config.css", IDR_GESTURE_CONFIG_CSS);
@@ -122,3 +131,16 @@ void GestureConfigUI::SetPreferenceValue(const base::ListValue* args) {
   }
 }
 
+
+void GestureConfigUI::CheckShouldAddWorkspaceCyclerConfiguration(
+    const base::ListValue* args) {
+  bool should_add = false;
+#if defined(USE_ASH)
+  should_add = ash::WorkspaceCyclerConfiguration::IsCyclerEnabled();
+#endif  // USE_ASH
+
+  web_ui()->CallJavascriptFunction(
+      "gesture_config.checkShouldAddWorkspaceCyclerConfigurationResult",
+      base::FundamentalValue(should_add));
+}
+