Revert of Replace enable-compositing-for-fixed-position with prefer-compositing-to-lcd-text.

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 64852e3ded3cc10371e65e8762dba76e92dac5a1..fa08f1d2cd3663591f6bf4c2a6da9cb340c7e496 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -141,6 +141,16 @@
   return flags;
 }
 
+const Experiment::Choice kEnableCompositingForFixedPositionChoices[] = {
+  { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
+  { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
+    switches::kEnableCompositingForFixedPosition, ""},
+  { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
+    switches::kDisableCompositingForFixedPosition, ""},
+  { IDS_FLAGS_COMPOSITING_FOR_FIXED_POSITION_HIGH_DPI,
+    switches::kEnableHighDpiCompositingForFixedPosition, ""}
+};
+
 const Experiment::Choice kEnableCompositingForTransitionChoices[] = {
   { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
   { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
@@ -643,6 +653,13 @@
     SINGLE_VALUE_TYPE(switches::kDisableWebAudio)
   },
 #endif
+  {
+    "enable-compositing-for-fixed-position",
+    IDS_FLAGS_COMPOSITING_FOR_FIXED_POSITION_NAME,
+    IDS_FLAGS_COMPOSITING_FOR_FIXED_POSITION_DESCRIPTION,
+    kOsAll,
+    MULTI_VALUE_TYPE(kEnableCompositingForFixedPositionChoices)
+  },
   {
     "enable-compositing-for-transition",
     IDS_FLAGS_COMPOSITING_FOR_TRANSITION_NAME,