metrics: Wrap leak detector sources in Chrome OS condition

components/metrics/BUILD.gn

Index: components/metrics/BUILD.gn
diff --git a/components/metrics/BUILD.gn b/components/metrics/BUILD.gn
index f711a59b56571968d4e2746556081ff64cfd6e2c..20f9d1b658736fbb0ec6f71672a9aa1928775ef5 100644
--- a/components/metrics/BUILD.gn
+++ b/components/metrics/BUILD.gn
@@ -111,28 +111,30 @@ if (!is_ios) {
   }
 }
 
-# GYP version: components/metrics.gypi:metrics_leak_detector
-static_library("leak_detector") {
-  sources = [
-    "leak_detector/call_stack_manager.cc",
-    "leak_detector/call_stack_manager.h",
-    "leak_detector/call_stack_table.cc",
-    "leak_detector/call_stack_table.h",
-    "leak_detector/custom_allocator.cc",
-    "leak_detector/custom_allocator.h",
-    "leak_detector/leak_analyzer.cc",
-    "leak_detector/leak_analyzer.h",
-    "leak_detector/leak_detector_impl.cc",
-    "leak_detector/leak_detector_impl.h",
-    "leak_detector/leak_detector_value_type.cc",
-    "leak_detector/leak_detector_value_type.h",
-    "leak_detector/ranked_list.cc",
-    "leak_detector/ranked_list.h",
-  ]
+if (is_chromeos) {
+  # GYP version: components/metrics.gypi:metrics_leak_detector
+  source_set("leak_detector") {
+    sources = [
+      "leak_detector/call_stack_manager.cc",
+      "leak_detector/call_stack_manager.h",
+      "leak_detector/call_stack_table.cc",
+      "leak_detector/call_stack_table.h",
+      "leak_detector/custom_allocator.cc",
+      "leak_detector/custom_allocator.h",
+      "leak_detector/leak_analyzer.cc",
+      "leak_detector/leak_analyzer.h",
+      "leak_detector/leak_detector_impl.cc",
+      "leak_detector/leak_detector_impl.h",
+      "leak_detector/leak_detector_value_type.cc",
+      "leak_detector/leak_detector_value_type.h",
+      "leak_detector/ranked_list.cc",
+      "leak_detector/ranked_list.h",
+    ]
 
-  deps = [
-    "//base",
-  ]
+    deps = [
+      "//base",
+    ]
+  }
 }
 
 # GYP version: components/metrics.gypi:metrics_net
@@ -265,20 +267,22 @@ if (is_linux) {
   }
 }
 
-source_set("leak_detector_unit_tests") {
-  testonly = true
-  sources = [
-    "leak_detector/call_stack_manager_unittest.cc",
-    "leak_detector/call_stack_table_unittest.cc",
-    "leak_detector/leak_analyzer_unittest.cc",
-    "leak_detector/leak_detector_impl_unittest.cc",
-    "leak_detector/ranked_list_unittest.cc",
-  ]
+if (is_chromeos) {
+  source_set("leak_detector_unit_tests") {
+    testonly = true
+    sources = [
+      "leak_detector/call_stack_manager_unittest.cc",
+      "leak_detector/call_stack_table_unittest.cc",
+      "leak_detector/leak_analyzer_unittest.cc",
+      "leak_detector/leak_detector_impl_unittest.cc",
+      "leak_detector/ranked_list_unittest.cc",
+    ]
 
-  deps = [
-    ":leak_detector",
-    "//testing/gtest",
-  ]
+    deps = [
+      ":leak_detector",
+      "//testing/gtest",
+    ]
+  }
 }
 
 source_set("unit_tests") {