Use fast ELF symbolizer for symbols.py and tombstones

third_party/android_platform/README.chromium

 Name: Android Platform engineering tools
 Short Name: android platform development
 URL: https://android.googlesource.com/platform/development
 Version: unknown
 Date: 2014/05/02
 Revision: 1b10ec4
 License: Apache 2.0
 License File: NOT_SHIPPED
 Security Critical: no
 
@@ skipping 16 matching lines @@
 Added option to change the amount of symbolization done.
 Updated output directories to use environment variable.
 When calling addr2line, check the symbol is a file that looks like it contains
     symbols.
 Added support for parsing LOG(FATAL) and DCHECK errors and their
     stack traces, as emitted by src/base/debug/stack_trace_android.cc
 Added support for finding symbols when library is loaded directly from the APK.
 Changed the toolchain to remove references to 4.6 toolchains.
 Added support for arch=x64 as an alias to arch=x86_64
 Added debug logging and --verbose parameter.
+Used fast ELF symbolizer for symbols.py and tombstones
 
 Android relocation packing tool details:
     Copy sources from AOSP bionic/tools/relocation_packer
     Remove scripts that regenerate golden test data (not relevant here)
     Create a nativehelper/ScopedFd.h to satisfy inclusion from main.cc
     Create gyp build
     Create gn build (currently packer only; no unit tests)
     List of bionic changes currently included:
       Refresh: https://android-review.googlesource.com/#/c/143878/
       Refresh: https://android-review.googlesource.com/#/c/147620/
                https://android-review.googlesource.com/#/c/147745/
                https://android-review.googlesource.com/#/c/148073/
       Refresh: https://android-review.googlesource.com/#/c/151901/
                https://android-review.googlesource.com/#/c/149300/
                https://android-review.googlesource.com/#/c/148822/
                https://android-review.googlesource.com/#/c/148492/
                https://android-review.googlesource.com/#/c/148175/