Format dart:html and related generated files on output

tools/dom/scripts/dartdomgenerator.py

Index: tools/dom/scripts/dartdomgenerator.py
diff --git a/tools/dom/scripts/dartdomgenerator.py b/tools/dom/scripts/dartdomgenerator.py
index 6459e45c7e815df2f0d065a30e9a0ab7a70139f6..adae8e01482496fbbeefd8ba5e6be0609d8f9952 100755
--- a/tools/dom/scripts/dartdomgenerator.py
+++ b/tools/dom/scripts/dartdomgenerator.py
@@ -26,7 +26,7 @@ ply_dir = os.path.join(third_party_dir, 'ply')
 # is dart-git/dart/third_party
 if not os.path.exists(ply_dir):
   # For Dartium (ply directory is dartium-git/src/third_party/ply) third_party
-  # location is dartium-git/src/third_party 
+  # location is dartium-git/src/third_party
   third_party_dir = os.path.join(dart_dir, '..', 'third_party')
   assert(os.path.exists(third_party_dir))
 else:
@@ -227,6 +227,10 @@ def GenerateSingleFile(library_path, output_dir, generated_output_dir=None):
   command = ' '.join(['cd', library_dir, ';',
                       copy_dart_script, output_dir, library_filename])
   subprocess.call([command], shell=True)
+  prebuilt_dartfmt = os.path.join(utils.CheckedInSdkPath(), 'bin', 'dartfmt')
+  sdk_file = os.path.join(library_dir, output_dir, library_filename)
+  formatCommand = ' '.join([prebuilt_dartfmt, '-w', sdk_file])
+  subprocess.call([formatCommand], shell=True)
 

[terry, 2017/05/05 06:54:31]

Looks good to me, although I think we'll want to dartfmt the cached_patches.dart
file too.  Maybe this should be a function that is called after line 363 below.

[terry, 2017/05/05 06:59:01]

You what this is fine just as it is.  This is a small template that is squirted
out shouldn't be dartfmt'd until after generate_patches.py is run which is much
later after Dartium is built.  You could add this code to generate_patches.py to
dartfmt the cached_patches.dart file after its really generated.

 def UpdateCssProperties():
   """Regenerate the CssStyleDeclaration template file with the current CSS