Refactor OS_LINUX preprocessor directive for LaCrOS effort.

Currently, ChromeOS defines the OS_LINUX directive as well as
OS_CHROMEOS.  We're working to separate these two, so we're
making the fact that OS_LINUX == OS_LINUX || OS_CHROMEOS
explicit.

This is changes for /chrome/browser/metrics/process_memory_metrics_emitter_unittest.cc

This CL was uploaded by git cl split.

R=siggi@chromium.org

Bug: 1110266
Change-Id: I9014a8e3003f5dba8151c2599d550441a401d7a4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2371255Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Commit-Queue: Sean McAllister <smcallis@google.com>
Cr-Commit-Position: refs/heads/master@{#803132}

chrome/browser/metrics/process_memory_metrics_emitter_unittest.cc

@@ -114,18 +114,18 @@ void SetAllocatorDumpMetric(ProcessMemoryDumpPtr& pmd,
 OSMemDumpPtr GetFakeOSMemDump(uint32_t resident_set_kb,
                               uint32_t private_footprint_kb,
                               uint32_t shared_footprint_kb
-#if defined(OS_LINUX) || defined(OS_ANDROID)
+#if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_ANDROID)
                               ,
                               uint32_t private_swap_footprint_kb
 #endif
-                              ) {
+) {
   using memory_instrumentation::mojom::VmRegion;
 
   return memory_instrumentation::mojom::OSMemDump::New(
       resident_set_kb, resident_set_kb /* peak_resident_set_kb */,
       true /* is_peak_rss_resettable */, private_footprint_kb,
       shared_footprint_kb
-#if defined(OS_LINUX) || defined(OS_ANDROID)
+#if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_ANDROID)
       ,
       private_swap_footprint_kb
 #endif
@@ -156,7 +156,7 @@ void PopulateBrowserMetrics(GlobalMemoryDumpPtr& global_dump,
   OSMemDumpPtr os_dump =
       GetFakeOSMemDump(GetResidentValue(metrics_mb) * 1024,
                        metrics_mb["PrivateMemoryFootprint"] * 1024,
-#if defined(OS_LINUX) || defined(OS_ANDROID)
+#if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_ANDROID)
                        // accessing PrivateSwapFootprint on other OSes will
                        // modify metrics_mb to create the value, which leads to
                        // expectation failures.
@@ -165,7 +165,7 @@ void PopulateBrowserMetrics(GlobalMemoryDumpPtr& global_dump,
 #else
                        metrics_mb["SharedMemoryFootprint"] * 1024
 #endif
-                       );
+      );
   pmd->os_dump = std::move(os_dump);
   global_dump->process_dumps.push_back(std::move(pmd));
 }
@@ -179,7 +179,7 @@ MetricMap GetExpectedBrowserMetrics() {
         {"Malloc", 20}, {"PrivateMemoryFootprint", 30},
         {"SharedMemoryFootprint", 35}, {"Uptime", 42},
         {"GpuMemory", kGpuTotalMemory * 1024 * 1024},
-#if defined(OS_LINUX) || defined(OS_ANDROID)
+#if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_ANDROID)
         {"PrivateSwapFootprint", 50},
 #endif
   });
@@ -310,15 +310,15 @@ void PopulateRendererMetrics(GlobalMemoryDumpPtr& global_dump,
       metrics_mb_or_count["PartitionAlloc.Partitions.ArrayBuffer"] * 1024 *
           1024);
 
-  OSMemDumpPtr os_dump = GetFakeOSMemDump(
-      GetResidentValue(metrics_mb_or_count) * 1024,
-      metrics_mb_or_count["PrivateMemoryFootprint"] * 1024,
-#if defined(OS_LINUX) || defined(OS_ANDROID)
-      // accessing PrivateSwapFootprint on other OSes will
-      // modify metrics_mb_or_count to create the value, which leads to
-      // expectation failures.
-      metrics_mb_or_count["SharedMemoryFootprint"] * 1024,
-      metrics_mb_or_count["PrivateSwapFootprint"] * 1024
+  OSMemDumpPtr os_dump =
+      GetFakeOSMemDump(GetResidentValue(metrics_mb_or_count) * 1024,
+                       metrics_mb_or_count["PrivateMemoryFootprint"] * 1024,
+#if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_ANDROID)
+                       // accessing PrivateSwapFootprint on other OSes will
+                       // modify metrics_mb_or_count to create the value, which
+                       // leads to expectation failures.
+                       metrics_mb_or_count["SharedMemoryFootprint"] * 1024,
+                       metrics_mb_or_count["PrivateSwapFootprint"] * 1024
 #else
       metrics_mb_or_count["SharedMemoryFootprint"] * 1024
 #endif
@@ -372,7 +372,7 @@ MetricMap GetExpectedRendererMetrics() {
         {"V8.Main.Malloc", 2}, {"V8.Workers", 60},
         {"V8.Workers.AllocatedObjects", 40}, {"NumberOfExtensions", 0},
         {"Uptime", 42},
-#if defined(OS_LINUX) || defined(OS_ANDROID)
+#if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_ANDROID)
         {"PrivateSwapFootprint", 50},
 #endif
         {"NumberOfAdSubframes", 28}, {"NumberOfDetachedScriptStates", 11},
@@ -406,7 +406,7 @@ void PopulateGpuMetrics(GlobalMemoryDumpPtr& global_dump,
   OSMemDumpPtr os_dump =
       GetFakeOSMemDump(GetResidentValue(metrics_mb) * 1024,
                        metrics_mb["PrivateMemoryFootprint"] * 1024,
-#if defined(OS_LINUX) || defined(OS_ANDROID)
+#if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_ANDROID)
                        // accessing PrivateSwapFootprint on other OSes will
                        // modify metrics_mb to create the value, which leads to
                        // expectation failures.
@@ -415,7 +415,7 @@ void PopulateGpuMetrics(GlobalMemoryDumpPtr& global_dump,
 #else
                        metrics_mb["SharedMemoryFootprint"] * 1024
 #endif
-                       );
+      );
   pmd->os_dump = std::move(os_dump);
   global_dump->process_dumps.push_back(std::move(pmd));
 }
@@ -429,7 +429,7 @@ MetricMap GetExpectedGpuMetrics() {
         {"Malloc", 220}, {"PrivateMemoryFootprint", 230},
         {"SharedMemoryFootprint", 235}, {"CommandBuffer", kGpuCommandBufferMB},
         {"Uptime", 42}, {"GpuMemory", kGpuTotalMemory * 1024 * 1024},
-#if defined(OS_LINUX) || defined(OS_ANDROID)
+#if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_ANDROID)
         {"PrivateSwapFootprint", 50},
 #endif
   });
@@ -445,7 +445,7 @@ void PopulateAudioServiceMetrics(GlobalMemoryDumpPtr& global_dump,
   OSMemDumpPtr os_dump =
       GetFakeOSMemDump(GetResidentValue(metrics_mb) * 1024,
                        metrics_mb["PrivateMemoryFootprint"] * 1024,
-#if defined(OS_LINUX) || defined(OS_ANDROID)
+#if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_ANDROID)
                        // accessing PrivateSwapFootprint on other OSes will
                        // modify metrics_mb to create the value, which leads to
                        // expectation failures.
@@ -454,7 +454,7 @@ void PopulateAudioServiceMetrics(GlobalMemoryDumpPtr& global_dump,
 #else
                        metrics_mb["SharedMemoryFootprint"] * 1024
 #endif
-                       );
+      );
   pmd->os_dump = std::move(os_dump);
   global_dump->process_dumps.push_back(std::move(pmd));
 }
@@ -467,7 +467,7 @@ MetricMap GetExpectedAudioServiceMetrics() {
 #endif
         {"Malloc", 20}, {"PrivateMemoryFootprint", 30},
         {"SharedMemoryFootprint", 35}, {"Uptime", 42},
-#if defined(OS_LINUX) || defined(OS_ANDROID)
+#if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_ANDROID)
         {"PrivateSwapFootprint", 50},
 #endif
   });