Revert of Add new wired memory metric to memory-infra dumps.

base/process/process_metrics_unittest.cc

Index: base/process/process_metrics_unittest.cc
diff --git a/base/process/process_metrics_unittest.cc b/base/process/process_metrics_unittest.cc
index 74ecc87d38f0ed93680f1fd3270c0c000ff9e833..b11a26b24ba7cfd5417c519dff06257d5b3bb17b 100644
--- a/base/process/process_metrics_unittest.cc
+++ b/base/process/process_metrics_unittest.cc
@@ -24,10 +24,6 @@
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/multiprocess_func_list.h"
 
-#if defined(OS_MACOSX)
-#include <sys/mman.h>
-#endif
-
 namespace base {
 namespace debug {
 
@@ -56,42 +52,6 @@
 };
 
 /////////////////////////////////////////////////////////////////////////////
-
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-TEST_F(SystemMetricsTest, LockedBytes) {
-  ProcessHandle handle = GetCurrentProcessHandle();
-  std::unique_ptr<ProcessMetrics> metrics(
-      ProcessMetrics::CreateProcessMetrics(handle, nullptr));
-
-  size_t initial_locked_bytes;
-  bool result =
-      metrics->GetMemoryBytes(nullptr, nullptr, nullptr, &initial_locked_bytes);
-  ASSERT_TRUE(result);
-
-  size_t size = 8 * 1024 * 1024;
-  std::unique_ptr<char[]> memory(new char[size]);
-  int r = mlock(memory.get(), size);
-  ASSERT_EQ(0, r);
-
-  size_t new_locked_bytes;
-  result =
-      metrics->GetMemoryBytes(nullptr, nullptr, nullptr, &new_locked_bytes);
-  ASSERT_TRUE(result);
-
-  // There should be around |size| more locked bytes, but multi-threading might
-  // cause noise.
-  EXPECT_LT(initial_locked_bytes + size / 2, new_locked_bytes);
-  EXPECT_GT(initial_locked_bytes + size * 1.5, new_locked_bytes);
-
-  r = munlock(memory.get(), size);
-  ASSERT_EQ(0, r);
-
-  result =
-      metrics->GetMemoryBytes(nullptr, nullptr, nullptr, &new_locked_bytes);
-  ASSERT_TRUE(result);
-  EXPECT_EQ(initial_locked_bytes, new_locked_bytes);
-}
-#endif  // defined(OS_MACOSX)
 
 #if defined(OS_LINUX) || defined(OS_ANDROID)
 TEST_F(SystemMetricsTest, IsValidDiskName) {