Set DocumentPolicy status to experimental.

This also removes the virtual test suite, and the failing test
expectations from the experimental build.

The default values for the two initial features are also set to their
correct web-compatible defaults.

Bug: 993790
Change-Id: I308676b0c63524ad4a229a03940b928f95a384c9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2019464
Commit-Queue: Ian Clelland <iclelland@chromium.org>
Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Reviewed-by: Jeremy Roman <jbroman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#735751}

content/public/common/content_switch_dependent_feature_overrides.cc

@@ -28,6 +28,9 @@ GetSwitchDependentFeatureOverrides(const base::CommandLine& command_line) {
       {switches::kEnableExperimentalWebPlatformFeatures,
        std::cref(network::features::kCrossOriginIsolation),
        base::FeatureList::OVERRIDE_ENABLE_FEATURE},
+      {switches::kEnableExperimentalWebPlatformFeatures,
+       std::cref(features::kDocumentPolicy),
+       base::FeatureList::OVERRIDE_ENABLE_FEATURE},
   };
 
   // TODO(chlily): There are currently a few places where, to check if some

third_party/blink/common/feature_policy/document_policy.cc

@@ -280,9 +280,10 @@ std::unique_ptr<DocumentPolicy> DocumentPolicy::CreateWithHeaderPolicy(
 // configuration json5 file.
 const DocumentPolicy::FeatureState& DocumentPolicy::GetFeatureDefaults() {
   static base::NoDestructor<FeatureState> default_feature_list(
-      {{mojom::FeaturePolicyFeature::kFontDisplay, PolicyValue(false)},
+      {{mojom::FeaturePolicyFeature::kFontDisplay, PolicyValue(true)},
        {mojom::FeaturePolicyFeature::kUnoptimizedLosslessImages,
-        PolicyValue(2.0f)}});
+        PolicyValue::CreateMaxPolicyValue(
+            mojom::PolicyValueType::kDecDouble)}});
   return *default_feature_list;
 }
 

third_party/blink/renderer/platform/runtime_enabled_features.json5

@@ -608,6 +608,7 @@
     },
     {
       name: "DocumentPolicy",
+      status: "experimental",
     },
     {
       name: "DocumentWrite",

third_party/blink/web_tests/TestExpectations

@@ -6153,12 +6153,7 @@ crbug.com/1006759 http/tests/devtools/modules-load-network.js [ Pass Failure ]
 crbug.com/1006759 http/tests/devtools/modules-load-source.js [ Pass Failure ]
 
 # Failing document policy tests
-crbug.com/993790 external/wpt/document-policy/required-policy/document-policy.html [ Failure ]
-crbug.com/993790 external/wpt/document-policy/required-policy/no-document-policy.html [ Failure ]
-crbug.com/993790 external/wpt/document-policy/required-policy/required-document-policy-nested.html [ Failure ]
-crbug.com/993790 external/wpt/document-policy/required-policy/required-document-policy.html [ Failure ]
 crbug.com/993790 external/wpt/document-policy/required-policy/separate-document-policies.html [ Failure ]
-crbug.com/993790 virtual/document-policy/external/wpt/document-policy/required-policy/separate-document-policies.html [ Failure ]
 
 # Temporary suppression to allow devtools-frontend changes
 crbug.com/1029489 http/tests/devtools/elements/elements-linkify-attributes.js [ Pass Failure ]

third_party/blink/web_tests/VirtualTestSuites

@@ -701,11 +701,6 @@
     "bases": ["external/wpt/fetch/http-cache"],
     "args": ["--disable-features=SplitCacheByNetworkIsolationKey"]
   },
-  {
-    "prefix": "document-policy",
-    "bases": ["external/wpt/document-policy"],
-    "args": ["--enable-features=DocumentPolicy"]
-  },
   {
     "prefix": "web-components-v0-disabled",
     "bases": ["external/wpt/dom",

third_party/blink/web_tests/virtual/document-policy/external/wpt/document-policy/README.txt

-This test contains expectations for document policy web platform tests when
-run with document policy enabled.

third_party/blink/web_tests/webexposed/element-instance-property-listing-expected.txt

@@ -659,6 +659,7 @@ html element iframe
     property marginHeight
     property marginWidth
     property name
+    property policy
     property referrerPolicy
     property sandbox
     property scrolling

third_party/blink/web_tests/webexposed/global-interface-listing-expected.txt

@@ -3387,6 +3387,7 @@ interface HTMLIFrameElement : HTMLElement
     getter marginHeight
     getter marginWidth
     getter name
+    getter policy
     getter referrerPolicy
     getter sandbox
     getter scrolling
@@ -3408,6 +3409,7 @@ interface HTMLIFrameElement : HTMLElement
     setter marginHeight
     setter marginWidth
     setter name
+    setter policy
     setter referrerPolicy
     setter sandbox
     setter scrolling