Add UseSkiaRenderer to chrome://flags

Change-Id: I7da6fbcf9e935c88057e71190089883a4cb18fe4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1539875
Commit-Queue: Jonathan Backer <backer@chromium.org>
Reviewed-by: Robert Kroeger <rjkroege@chromium.org>
Cr-Commit-Position: refs/heads/master@{#644780}

chrome/browser/about_flags.cc

@@ -4078,6 +4078,10 @@ const FeatureEntry kFeatureEntries[] = {
      FEATURE_VALUE_TYPE(features::kLogJsConsoleMessages)},
 #endif  // OS_ANDROID
 
+    {"enable-skia-renderer", flag_descriptions::kSkiaRendererName,
+     flag_descriptions::kSkiaRendererDescription, kOsLinux | kOsAndroid,
+     FEATURE_VALUE_TYPE(features::kUseSkiaRenderer)},
+
     // NOTE: Adding a new flag requires adding a corresponding entry to enum
     // "LoginCustomFlags" in tools/metrics/histograms/enums.xml. See "Flag
     // Histograms" in tools/metrics/histograms/README.md (run the

chrome/browser/flag-metadata.json

@@ -1665,6 +1665,11 @@
     // Isolation.
     "expiry_milestone": -1
   },
+  {
+    "name": "enable-skia-renderer",
+    "owners": [ "backer"],
+    "expiry_milestone": 80
+  },
   {
     "name": "enable-sole-integration",
     // "owners": [ "your-team" ],

chrome/browser/flag_descriptions.cc

@@ -1761,6 +1761,11 @@ const char kShowAutofillTypePredictionsDescription[] =
     "Annotates web forms with Autofill field type predictions as placeholder "
     "text.";
 
+const char kSkiaRendererName[] = "Skia API for OOP-D compositing";
+const char kSkiaRendererDescription[] =
+    "If enabled, the display compositor will use Skia as the graphics API "
+    "instead of OpenGL ES. Requires Viz Display Compositor (OOP-D).";
+
 const char kHistoryManipulationIntervention[] =
     "History Manipulation Intervention";
 const char kHistoryManipulationInterventionDescription[] =

chrome/browser/flag_descriptions.h

@@ -1045,6 +1045,9 @@ extern const char kShowAutofillSignaturesDescription[];
 extern const char kShowAutofillTypePredictionsName[];
 extern const char kShowAutofillTypePredictionsDescription[];
 
+extern const char kSkiaRendererName[];
+extern const char kSkiaRendererDescription[];
+
 extern const char kHistoryManipulationIntervention[];
 extern const char kHistoryManipulationInterventionDescription[];
 

tools/metrics/histograms/enums.xml

@@ -32160,6 +32160,7 @@ from previous Chrome versions.
   <int value="-1691892152" label="SafeSearchUrlReporting:disabled"/>
   <int value="-1691668194" label="enable-new-bookmark-apps"/>
   <int value="-1691281364" label="enable-notification-action-icons"/>
+  <int value="-1687406612" label="UseSkiaRenderer:disabled"/>
   <int value="-1686782572" label="ChromeHomeInactivitySheetExpansion:disabled"/>
   <int value="-1684123448" label="disable-best-effort-tasks"/>
   <int value="-1682843294" label="DataReductionProxyDecidesTransform:enabled"/>
@@ -32383,6 +32384,7 @@ from previous Chrome versions.
   <int value="-1357778876" label="ExplicitLanguageAsk:enabled"/>
   <int value="-1357655121" label="enable-iframe-based-signin"/>
   <int value="-1357008397" label="ContextualSuggestionsCarousel:disabled"/>
+  <int value="-1353195918" label="UseSkiaRenderer:enabled"/>
   <int value="-1351968795" label="SingleProcessMash:enabled"/>
   <int value="-1351328710"
       label="OmniboxUIExperimentJogTextfieldOnPopup:disabled"/>