[ash-md] Improves smoothness with many windows in overview

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 88dc0771567ba2df23938fadcca5e82f9edbeb8a..142a997c49f56c91007d3cd019799a3ac2c69476 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -379,6 +379,34 @@ const FeatureEntry::Choice kAshMaterialDesignChoices[] = {
      ash::switches::kAshMaterialDesignExperimental},
 };
 
+const FeatureEntry::Choice kAshMaxWindowsToUseMaskInOverviewChoices[] = {
+    {IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", ""},
+    {IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_MASK_UNLIMITED,
+     ash::switches::kAshMaxWindowsToUseMaskInOverview, "-1"},
+    {IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_MASK_ZERO,
+     ash::switches::kAshMaxWindowsToUseMaskInOverview, "0"},
+    {IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_MASK_FIVE,
+     ash::switches::kAshMaxWindowsToUseMaskInOverview, "5"},
+    {IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_MASK_TEN,
+     ash::switches::kAshMaxWindowsToUseMaskInOverview, "10"},
+    {IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_MASK_FIFTEEN,
+     ash::switches::kAshMaxWindowsToUseMaskInOverview, "15"},
+};
+
+const FeatureEntry::Choice kAshMaxWindowsToUseShapeInOverviewChoices[] = {
+    {IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", ""},
+    {IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_SHAPE_UNLIMITED,
+     ash::switches::kAshMaxWindowsToUseShapeInOverview, "-1"},
+    {IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_SHAPE_ZERO,
+     ash::switches::kAshMaxWindowsToUseShapeInOverview, "0"},
+    {IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_SHAPE_FIVE,
+     ash::switches::kAshMaxWindowsToUseShapeInOverview, "5"},
+    {IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_SHAPE_TEN,
+     ash::switches::kAshMaxWindowsToUseShapeInOverview, "10"},
+    {IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_SHAPE_FIFTEEN,
+     ash::switches::kAshMaxWindowsToUseShapeInOverview, "15"},
+};
+
 const FeatureEntry::Choice kAshMaterialDesignInkDropAnimationSpeed[] = {
     {IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", ""},
     {IDS_FLAGS_MATERIAL_DESIGN_INK_DROP_ANIMATION_FAST,
@@ -776,8 +804,8 @@ const FeatureEntry kFeatureEntries[] = {
      IDS_FLAGS_EXPERIMENTAL_WEB_PLATFORM_FEATURES_NAME,
      IDS_FLAGS_EXPERIMENTAL_WEB_PLATFORM_FEATURES_DESCRIPTION, kOsAll,
      SINGLE_VALUE_TYPE(switches::kEnableExperimentalWebPlatformFeatures)},
-    {"enable-web-bluetooth", IDS_FLAGS_WEB_BLUETOOTH_NAME,
-     IDS_FLAGS_WEB_BLUETOOTH_DESCRIPTION,
+    {"enable-web-bluetooth",  // FLAGS:RECORD_UMA
+     IDS_FLAGS_WEB_BLUETOOTH_NAME, IDS_FLAGS_WEB_BLUETOOTH_DESCRIPTION,
      kOsCrOS | kOsMac | kOsAndroid | kOsLinux,
      SINGLE_VALUE_TYPE(switches::kEnableWebBluetooth)},
 #if defined(ENABLE_EXTENSIONS)
@@ -951,6 +979,18 @@ const FeatureEntry kFeatureEntries[] = {
             ash::switches::kAshEnableStableOverviewOrder,
             ash::switches::kAshDisableStableOverviewOrder),
     },
+    {
+        "ash-max-previews-to-use-mask",
+        IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_MASK_NAME,
+        IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_MASK_DESCRIPTION, kOsCrOS,
+        MULTI_VALUE_TYPE(kAshMaxWindowsToUseMaskInOverviewChoices),
+    },
+    {
+        "ash-max-previews-to-use-shape",
+        IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_SHAPE_NAME,
+        IDS_FLAGS_ASH_MAX_PREVIEWS_TO_USE_SHAPE_DESCRIPTION, kOsCrOS,
+        MULTI_VALUE_TYPE(kAshMaxWindowsToUseShapeInOverviewChoices),
+    },
 #endif  // defined(USE_ASH)
 #if defined(OS_CHROMEOS)
     {"material-design-ink-drop-animation-speed",
@@ -1979,8 +2019,8 @@ const FeatureEntry kFeatureEntries[] = {
      IDS_FLAGS_ENABLE_WEB_PAYMENTS_DESCRIPTION, kOsAndroid,
      FEATURE_VALUE_TYPE(features::kWebPayments)},
 #endif  // defined(OS_ANDROID)
-    // NOTE: Adding new command-line switches requires adding corresponding
-    // entries to enum "LoginCustomFlags" in histograms.xml. See note in
+        // NOTE: Adding new command-line switches requires adding corresponding
+        // entries to enum "LoginCustomFlags" in histograms.xml. See note in
     // histograms.xml and don't forget to run AboutFlagsHistogramTest unit test.
 };