DevTools: split text_utils out of common module

third_party/WebKit/LayoutTests/http/tests/inspector/page-mock.js

Index: third_party/WebKit/LayoutTests/http/tests/inspector/page-mock.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/page-mock.js b/third_party/WebKit/LayoutTests/http/tests/inspector/page-mock.js
index a97611f35a0093f57acd4d387a510de26b127788..f7f5e410d8199bbf848b5bf5a0dc32049e7a8f2f 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/page-mock.js
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/page-mock.js
@@ -71,7 +71,7 @@ InspectorTest.PageMock = class {
             this._fireEvent('Runtime.executionContextCreated', {context: context});
         }
 
-        var text = new Common.Text(content);
+        var text = new TextUtils.Text(content);
         var script = {
             scriptId: id,
             url: url,