Move grit from DEPS into src.

tools/grit/grit/format/policy_templates/writers/json_writer.py

Index: tools/grit/grit/format/policy_templates/writers/json_writer.py
diff --git a/tools/grit/grit/format/policy_templates/writers/json_writer.py b/tools/grit/grit/format/policy_templates/writers/json_writer.py
new file mode 100755
index 0000000000000000000000000000000000000000..4dfd282064d1a1b5a3313983e0eef664ef4f4d60
--- /dev/null
+++ b/tools/grit/grit/format/policy_templates/writers/json_writer.py
@@ -0,0 +1,95 @@
+#!/usr/bin/env python
+# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import json
+
+from textwrap import TextWrapper
+from grit.format.policy_templates.writers import template_writer
+
+
+TEMPLATE_HEADER="""\
+// Policy template for Linux.
+// Uncomment the policies you wish to activate and change their values to
+// something useful for your case. The provided values are for reference only
+// and do not provide meaningful defaults!
+{"""
+
+
+HEADER_DELIMETER="""\
+  //-------------------------------------------------------------------------"""
+
+
+def GetWriter(config):
+  '''Factory method for creating JsonWriter objects.
+  See the constructor of TemplateWriter for description of
+  arguments.
+  '''
+  return JsonWriter(['linux'], config)
+
+
+class JsonWriter(template_writer.TemplateWriter):
+  '''Class for generating policy files in JSON format (for Linux). The
+  generated files will define all the supported policies with example values
+  set for them. This class is used by PolicyTemplateGenerator to write .json
+  files.
+  '''
+
+  def PreprocessPolicies(self, policy_list):
+    return self.FlattenGroupsAndSortPolicies(policy_list)
+
+  def WriteComment(self, comment):
+    self._out.append('// ' + comment)
+
+  def WritePolicy(self, policy):
+    if policy['type'] == 'external':
+      # This type can only be set through cloud policy.
+      return
+    example_value_str = json.dumps(policy['example_value'], sort_keys=True)
+
+    # Add comma to the end of the previous line.
+    if not self._first_written:
+      self._out[-2] += ','
+
+    if not self.CanBeMandatory(policy) and self.CanBeRecommended(policy):
+      line = '  // Note: this policy is supported only in recommended mode.'
+      self._out.append(line)
+      line = '  // The JSON file should be placed in %srecommended.' % \
+             self.config['linux_policy_path']
+      self._out.append(line)
+
+    line = '  // %s' % policy['caption']
+    self._out.append(line)
+    self._out.append(HEADER_DELIMETER)
+    description = self._text_wrapper.wrap(policy['desc'])
+    self._out += description;
+    line = '  //"%s": %s' % (policy['name'], example_value_str)
+    self._out.append('')
+    self._out.append(line)
+    self._out.append('')
+
+    self._first_written = False
+
+  def BeginTemplate(self):
+    if self._GetChromiumVersionString() is not None:
+      self.WriteComment(self.config['build'] + ''' version: ''' + \
+          self._GetChromiumVersionString())
+    self._out.append(TEMPLATE_HEADER)
+
+  def EndTemplate(self):
+    self._out.append('}')
+
+  def Init(self):
+    self._out = []
+    # The following boolean member is true until the first policy is written.
+    self._first_written = True
+    # Create the TextWrapper object once.
+    self._text_wrapper = TextWrapper(
+        initial_indent = '  // ',
+        subsequent_indent = '  // ',
+        break_long_words = False,
+        width = 80)
+
+  def GetTemplateText(self):
+    return '\n'.join(self._out)