Roll src/third_party/leveldatabase/src/ a0191e556..5bd5f0f67 (10 comm…

…its)

https://chromium.googlesource.com/external/leveldb.git/+log/a0191e5563b7..5bd5f0f67a5e

This CL also removes kLittleEndian from port_chromium.h.

$ git log a0191e556..5bd5f0f67 --date=short --no-merges --format='%ad %ae %s'
2020-04-30 costan Fix Travis CI build.
2020-04-30 costan Fix accidental double std:: qualifiers.
2020-04-29 costan Add some std:: qualifiers to types and functions.
2020-04-29 costan Switch from C headers to C++ headers.
2020-04-28 costan Fix C++11 build.
2020-04-17 no-reply change const to constexpr
2020-04-24 imjunwang remove unnessary status judge
2020-04-13 costan Remove leveldb::port::kLittleEndian.
2020-04-13 costan Use LLVM 10 on Travis CI.
2020-01-10 costan Remove Windows workarounds in some tests.

Created with:
  roll-dep src/third_party/leveldatabase/src

Change-Id: I11cf3f1aed658bd63ee0ddce1347f6bec4c58d9b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2194591
Reviewed-by: Chris Mumford <cmumford@google.com>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#767596}

DEPS

@@ -1062,7 +1062,7 @@ deps = {
   },
 
   'src/third_party/leveldatabase/src':
-    Var('chromium_git') + '/external/leveldb.git' + '@' + 'a0191e5563b7a6c24b39edcbdbff29e602e0acfc',
+    Var('chromium_git') + '/external/leveldb.git' + '@' + '5bd5f0f67a5eb0ed74c16b3ae847ec4e5bc3e412',
 
   'src/third_party/libFuzzer/src':
     Var('chromium_git') + '/chromium/llvm-project/compiler-rt/lib/fuzzer.git' + '@' +  Var('libfuzzer_revision'),

third_party/leveldatabase/port/port_chromium.h

@@ -20,9 +20,6 @@
 namespace leveldb {
 namespace port {
 
-// Chromium only supports little endian.
-static const bool kLittleEndian = true;
-
 class LOCKABLE Mutex {
  public:
   Mutex() = default;