Add default values to some policies missing them

Bug: 1139046
Change-Id: I016594eaf8415fb35cade1002d025209e06e9e82
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2568203Reviewed-by: Julian Pastarmov <pastarmovj@chromium.org>
Commit-Queue: Chris Sharp <csharp@chromium.org>
Cr-Commit-Position: refs/heads/master@{#833370}

components/policy/resources/policy_templates.json

@@ -2250,6 +2250,7 @@
         'per_profile': False,
         'platform_only': True,  # No cloud-policy support.
       },
+      'default': False,
       'example_value': True,
       'id': 344,
       'caption': '''Allow remote users to interact with elevated windows in remote assistance sessions''',
@@ -2269,6 +2270,7 @@
         'per_profile': False,
         'platform_only': True,  # No cloud-policy support.
       },
+      'default': True,
       'example_value': False,
       'id': 534,
       'caption': '''Allow remote access users to transfer files to/from the host''',
@@ -9739,6 +9741,7 @@
       'features': {
         'dynamic_refresh': True,
       },
+      'default': 1,
       'example_value': 1,
       'id': 757,
       'caption': '''Channel downgrade behavior''',
@@ -18547,6 +18550,7 @@
         'dynamic_refresh': True,
         'per_profile': True,
       },
+      'default': True,
       'example_value': True,
       'id': 727,
       'caption': '''Log events for policy based extension installs''',
@@ -19915,6 +19919,7 @@
         'dynamic_refresh': True,
         'per_profile': False,
       },
+      'default': False,
       'example_value': True,
       'id': 705,
       'caption': '''Allow users to use a <ph name="PLUGIN_VM_NAME">PluginVm</ph> on <ph name="PRODUCT_OS_NAME">$2<ex>Google Chrome OS</ex></ph>''',
@@ -21806,6 +21811,7 @@
         'per_profile': False,
         'cloud_only': True,
       },
+      'default': 0,
       'example_value': 1,
       'id': 728,
       'caption': '''Check Safe Browsing status of URLs in real time''',
@@ -22461,6 +22467,7 @@
         'dynamic_refresh': False,
         'per_profile': False,
       },
+      'default': 3,
       'example_value': 3,
       'id': 673,
       'caption': '''Limits the number of user data snapshots retained for use in case of emergency rollback.''',
@@ -22586,6 +22593,7 @@
         'dynamic_refresh': True,
         'per_profile': True,
       },
+      'default': True,
       'example_value': False,
       'id': 720,
       'caption': '''Allow print job history to be deleted''',
@@ -22880,6 +22888,7 @@
         'dynamic_refresh': True,
         'per_profile': True,
       },
+      'default': True,
       'example_value': False,
       'id': 666,
       'caption': '''Allow or deny screen capture''',
@@ -22979,6 +22988,7 @@
         'dynamic_refresh': True,
         'per_profile': False,
       },
+      'default':None,
       'example_value': True,
       'id': 676,
       'caption': '''Set the state of privacy screen on the login screen''',
@@ -23005,6 +23015,7 @@ If this policy is left unset, the privacy screen is disabled initially, but rema
         'dynamic_refresh': True,
         'per_profile': False,
       },
+      'default': None,
       'example_value': True,
       'id': 677,
       'caption': '''Enable privacy screen''',
@@ -23029,6 +23040,7 @@ If this policy is left unset, privacy screen is disabled initially but can be co
         'dynamic_refresh': True,
         'per_profile': True,
       },
+      'default': True,
       'example_value': True,
       'id': 678,
       'caption': '''Allows native notifications''',
@@ -23153,6 +23165,7 @@ If set to False, <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> will not
         'dynamic_refresh': True,
         'per_profile': True,
       },
+      'default': True,
       'example_value': True,
       'id': 685,
       'caption': '''Enable additional protections for users enrolled in the Advanced Protection program''',
@@ -23169,6 +23182,7 @@ If set to False, <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> will not
         'dynamic_refresh': False,
         'per_profile': True,
       },
+      'default': True,
       'example_value': False,
       'id': 687,
       'caption': '''Enable scrolling to text specified in URL fragments''',
@@ -23258,6 +23272,7 @@ If you disable this policy, web page scrolling to specific text fragments via UR
         'per_profile': False,
         'dynamic_refresh': True,
       },
+      'default': None,
       'example_value': True,
       'id': 713,
       'caption': '''Control the <ph name="PRODUCT_NAME">IntensiveWakeUpThrottling</ph> feature.''',
@@ -23375,6 +23390,7 @@ If you disable this policy, web page scrolling to specific text fragments via UR
         'per_profile': False,
         'dynamic_refresh': True,
       },
+      'default': True,
       'example_value': True,
       'id': 725,
       'caption': '''Control the <ph name="PRODUCT_NAME">User-Agent Client Hints</ph> feature.''',
@@ -23420,6 +23436,7 @@ If you disable this policy, web page scrolling to specific text fragments via UR
         'dynamic_refresh': True,
         'per_profile': True,
       },
+      'default': None,
       'example_value': False,
       'default_for_enterprise_users': False,
       'id': 739,
@@ -23441,6 +23458,7 @@ If you disable this policy, web page scrolling to specific text fragments via UR
         'dynamic_refresh': True,
         'per_profile': True,
       },
+      'default': True,
       'example_value': True,
       'id': 748,
       'caption': '''Enable warnings for insecure forms''',
@@ -23536,6 +23554,7 @@ If you disable this policy, web page scrolling to specific text fragments via UR
         'per_profile': False,
         'platform_only': True,
       },
+      'default': 1,
       'example_value': 2,
       'id': 801,
       'caption': 'Configuring the ToS behavior during first-run for CCT',
@@ -23833,6 +23852,7 @@ If you disable this policy, web page scrolling to specific text fragments via UR
       'features': {
         'dynamic_refresh': True,
       },
+      'default': False,
       'example_value': False,
       'id': 789,
       'caption': '''Allow addition of Family Link accounts to the device''',