Remove explicit -fomit_frame_pointer from ARM 32-bit builds.

build/config/compiler/BUILD.gn

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/android/config.gni")
 import("//build/config/chrome_build.gni")
 import("//build/config/chromecast_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/nacl/config.gni")
 import("//build/toolchain/cc_wrapper.gni")
@@ skipping 1367 matching lines @@
       "-Wl,--gc-sections",
     ]
   }
 }
 
 config("default_stack_frames") {
   if (is_posix) {
     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
   # the optimization flag [e.g. "/O2"]. The optimization flag is set by one of
   # the "optimize" configs, see rest of this file. The ordering that cflags are
   # applied is well-defined by the GN spec, and there is no way to ensure that
   # cflags set by "default_stack_frames" is applied after those set by an
   # "optimize" config. Similarly, there is no way to propagate state from this
   # config into the "optimize" config. We always apply the "/Oy-" config in the
   # definition for common_optimize_on_cflags definition, even though this may
@@ skipping 318 matching lines @@
 
 if (is_ios || is_mac) {
   # On Mac and iOS, this enables support for ARC (automatic ref-counting).
   # See http://clang.llvm.org/docs/AutomaticReferenceCounting.html.
   config("enable_arc") {
     common_flags = [ "-fobjc-arc" ]
     cflags_objc = common_flags
     cflags_objcc = common_flags
   }
 }