Revert "Android: Remove -fprofile-sample-accurate from blink core"

This reverts commit c2bb3798.

Reason for revert: Reverting to see what perf alerts fire.

Original change's description:
> Android: Remove -fprofile-sample-accurate from blink core
>
> This trades off some size for performance.
>
> Binary-Size: Trading size for speed
> Bug: 1125115
> Change-Id: If18e8ef4449dec6aab4494fa7d04063d8d94b845
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2491540
> Reviewed-by: George Burgess <gbiv@chromium.org>
> Commit-Queue: Andrew Grieve <agrieve@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#819964}

Bug: 1125115
Change-Id: Iebce1fffa79b590fd015d0054f9fe2da9e3bb3a3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2498088Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: George Burgess <gbiv@chromium.org>
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#822847}

third_party/blink/renderer/core/BUILD.gn

@@ -328,7 +328,7 @@ blink_core_sources("core_hot") {
   # TODO(ajwong) this is of mirror
   # https://source.chromium.org/chromium/chromium/src/+/master:third_party/blink/renderer/core/core.gni;l=26
   # to undo the configs which is fragile. Find a better way.
-  if (!is_debug && optimize_for_size) {
+  if (is_android && !is_debug) {
     configs -= [ "//build/config/compiler:default_optimization" ]
     configs += [ "//build/config/compiler:optimize_max" ]
   }

third_party/blink/renderer/core/core.gni

@@ -20,15 +20,12 @@ core_config_remove = []
 
 # Compute the optimization level. `optimize_max` ensures that speed is preferred
 # over size on all platforms.
-# TODO(crbug.com/1125115): It's unclear if the perf vs size win here is a good
-# trade-off for Android. Investigate that.
-if (!is_debug && !optimize_for_size) {
+# TODO: It's unclear if the perf vs size win here is a good trade-off for
+# Android. Investigate that.
+if (!is_debug && !is_android) {
   core_config_remove += [ "//build/config/compiler:default_optimization" ]
   core_config_add += [ "//build/config/compiler:optimize_max" ]
 }
-if (using_mismatched_sample_profile) {
-  core_config_remove += [ "//build/config/compiler:afdo_optimize_size" ]
-}
 
 core_config_remove += [ "//build/config/compiler:default_symbols" ]
 core_config_add += blink_symbols_config

third_party/blink/renderer/platform/heap/BUILD.gn

@@ -30,9 +30,6 @@ source_set("heap_unsanitized") {
   # std::atomic<>:: functions must be inlined.
   configs -= [ "//build/config/compiler:default_optimization" ]
   configs += [ "//build/config/compiler:optimize_max" ]
-  if (using_mismatched_sample_profile) {
-    configs -= [ "//build/config/compiler:afdo_optimize_size" ]
-  }
 
   if (!enable_blink_heap_use_v8_oilpan) {
     sources = [
@@ -168,8 +165,6 @@ blink_platform_sources("heap") {
   if (!is_debug && !optimize_for_size) {
     configs -= [ "//build/config/compiler:default_optimization" ]
     configs += [ "//build/config/compiler:optimize_max" ]
-  } else if (using_mismatched_sample_profile) {
-    configs -= [ "//build/config/compiler:afdo_optimize_size" ]
   }
 
   visibility = [

third_party/blink/renderer/platform/wtf/BUILD.gn

@@ -252,8 +252,9 @@ component("wtf") {
     sources -= [ "text/atomic_string_cf.cc" ]
   }
 
-  if (using_mismatched_sample_profile) {
-    configs -= [ "//build/config/compiler:afdo_optimize_size" ]
+  if (!is_debug && !optimize_for_size) {
+    configs -= [ "//build/config/compiler:default_optimization" ]
+    configs += [ "//build/config/compiler:optimize_max" ]
   }
 
   configs -= [ "//build/config/compiler:default_symbols" ]