Convert ARRAYSIZE_UNSAFE -> arraysize in base/.

R=thestig@chromium.org
BUG=423134

Review URL: https://codereview.chromium.org/656033009

Cr-Commit-Position: refs/heads/master@{#299835}
static void VariableArgsFunc(const char* format, ...) {
  va_list org;
  va_start(org, format);

  va_list dup;
  GG_VA_COPY(dup, org);
  int i1 = va_arg(org, int);
  int j1 = va_arg(org, int);
  char* s1 = va_arg(org, char*);
  double d1 = va_arg(org, double);
  va_end(org);

  int i2 = va_arg(dup, int);
  int j2 = va_arg(dup, int);
  char* s2 = va_arg(dup, char*);
  double d2 = va_arg(dup, double);

  EXPECT_EQ(i1, i2);
  EXPECT_EQ(j1, j2);
  EXPECT_STREQ(s1, s2);
  EXPECT_EQ(d1, d2);

  va_end(dup);
}

static void VariableArgsFunc(const char* format, ...) {
  va_list org;
  va_start(org, format);

  va_list dup;
  GG_VA_COPY(dup, org);
  int i1 = va_arg(org, int);
  int j1 = va_arg(org, int);
  char* s1 = va_arg(org, char*);
  double d1 = va_arg(org, double);
  va_end(org);

  int i2 = va_arg(dup, int);
  int j2 = va_arg(dup, int);
  char* s2 = va_arg(dup, char*);
  double d2 = va_arg(dup, double);

  EXPECT_EQ(i1, i2);
  EXPECT_EQ(j1, j2);
  EXPECT_STREQ(s1, s2);
  EXPECT_EQ(d1, d2);

  va_end(dup);
}
