Switch from DRT to content shell.

tools/testing/legpad/legpad.py

Index: tools/testing/legpad/legpad.py
diff --git a/tools/testing/legpad/legpad.py b/tools/testing/legpad/legpad.py
index 1a4aa558a5736b6c43b3dab9302782866292791a..fb43371b827af758c36e306c697b5b4de3a035ef 100644
--- a/tools/testing/legpad/legpad.py
+++ b/tools/testing/legpad/legpad.py
@@ -9,7 +9,7 @@ Legpad is used to compile .dart files to javascript, using the dart2js compiler.
 
 This is accomplished by creating an html file (usually called
 <something>.legpad.html) that executes the dart2js compiler when the page
-is loaded by a web browser (or DumpRenderTree).
+is loaded by a web browser (or content shell).
 
 The <something>.legpad.html file contains:
 
@@ -24,7 +24,7 @@ When the html page is loaded by a browser, the leg compiler is invoked
 and the dart program is compiled to javascript.  The generated javascript is
 placed in a <pre> element with id "output".
 
-When the html page is passed to DumpRenderTree, the dumped output will
+When the html page is passed to content shell, the dumped output will
 have the generated javascript.
 
 See 'example.sh' for an example of how to run legpad.
@@ -181,7 +181,7 @@ class Pad(object):
 
     logging.debug("js_file: '%s" % self.js_file)
 
-    # this is the html file that we pass to DumpRenderTree
+    # this is the html file that we pass to content shell.
     self.html_file = self.main_file + ".legpad.html"
     logging.debug("html_file: '%s'" % self.html_file)
 
@@ -222,9 +222,9 @@ class Pad(object):
     return html
 
   def generate_js(self):
-    drt = os.path.join(self.dart_dir, "client/tests/drt/DumpRenderTree")
+    drt = os.path.join(self.dart_dir, "client/tests/drt/content_shell")
     if platform.system() == 'Darwin':
-      drt += ".app"
+      drt = os.path.join(self.dart_dir, "client/tests/drt/Content Shell.app")
     elif platform.system() == 'Windows':
       raise Exception("legpad does not run on Windows")
 
@@ -236,7 +236,7 @@ class Pad(object):
     stdout = run_command(args)
     match = OUTPUT_JAVASCRIPT_REGEX.match(stdout)
     if not match:
-      raise Exception("can't find regex in DumpRenderTree output")
+      raise Exception("can't find regex in content shell output")
     return match.group(1)
 
   @staticmethod