Remove explicit -fomit_frame_pointer from ARM 32-bit builds.

build/config/compiler/BUILD.gn

Index: build/config/compiler/BUILD.gn
diff --git a/build/config/compiler/BUILD.gn b/build/config/compiler/BUILD.gn
index 320b7fce75bb11af6037a317aecf98aaeb47c8f4..630db84f14be471ba134fa4bb559c5808e25cbff 100644
--- a/build/config/compiler/BUILD.gn
+++ b/build/config/compiler/BUILD.gn
@@ -1385,7 +1385,12 @@ config("default_stack_frames") {
     if (enabled_frame_pointers) {
       cflags = [ "-fno-omit-frame-pointer" ]
     } else {
-      cflags = [ "-fomit-frame-pointer" ]
+      if (is_android || current_cpu != "arm") {
+        # TODO(710131): Remove this special-casing for ARM 32 bit once we
+        # have determined why -fomit-frame-pointer triggers CPU errata in
+        # ARM A12/A17 devices.
+        cflags = [ "-fomit-frame-pointer" ]
+      }
     }
   }
   # On Windows, the flag to enable framepointers "/Oy-" must always come after