Implement basic support for Windows module emission.

components/tracing/common/process_metrics_memory_dump_provider.h

Index: components/tracing/common/process_metrics_memory_dump_provider.h
diff --git a/components/tracing/common/process_metrics_memory_dump_provider.h b/components/tracing/common/process_metrics_memory_dump_provider.h
index ec1a9d66ab52115d66bfe504ce4e270969c8ce36..57623d7b93ab36ba9c9ce9cc6de45eec0072f78e 100644
--- a/components/tracing/common/process_metrics_memory_dump_provider.h
+++ b/components/tracing/common/process_metrics_memory_dump_provider.h
@@ -49,6 +49,10 @@ class TRACING_EXPORT ProcessMetricsMemoryDumpProvider
   FRIEND_TEST_ALL_PREFIXES(ProcessMetricsMemoryDumpProviderTest,
                            NoDuplicateRegions);
 #endif  // defined(OS_MACOSX)

[awong, 2017/02/23 22:05:44]

#elif?

[Wez, 2017/02/23 23:35:03]

Or just rename the platform-specific module reading tests to
TestPlatformRegionDump or something equally generic, so we can unconditionally
friend that.

+#if defined(OS_WIN)
+  FRIEND_TEST_ALL_PREFIXES(ProcessMetricsMemoryDumpProviderTest,
+                           TestWinModuleReading);
+#endif  // defined(OS_WIN)
 
   ProcessMetricsMemoryDumpProvider(base::ProcessId process);