Platform-specific prune state storage.

chrome/browser/safe_browsing/incident_reporting/incident_reporting_service_unittest.cc

Index: chrome/browser/safe_browsing/incident_reporting/incident_reporting_service_unittest.cc
diff --git a/chrome/browser/safe_browsing/incident_reporting/incident_reporting_service_unittest.cc b/chrome/browser/safe_browsing/incident_reporting/incident_reporting_service_unittest.cc
index 7303ea217c990ecfe7738330a76b93e768a20cd0..601086fb6b94b930c4c79e3b041674c3f7a10bc3 100644
--- a/chrome/browser/safe_browsing/incident_reporting/incident_reporting_service_unittest.cc
+++ b/chrome/browser/safe_browsing/incident_reporting/incident_reporting_service_unittest.cc
@@ -30,6 +30,10 @@
 #include "net/url_request/url_request_context_getter.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+#if defined(OS_WIN)
+#include "base/test/test_reg_util_win.h"
+#endif
+
 // A test fixture that sets up a test task runner and makes it the thread's
 // runner. The fixture implements a fake envrionment data collector and a fake
 // report uploader.
@@ -180,6 +184,11 @@ class IncidentReportingServiceTest : public testing::Test {
 
   void SetUp() override {
     testing::Test::SetUp();
+#if defined(OS_WIN)
+    // Redirect HKCU so that the platform state store used by the test doesn't
+    // collide with existing Chrome installs or other tests running in parallel.
+    registry_override_manager_.OverrideRegistry(HKEY_CURRENT_USER);
+#endif
     ASSERT_TRUE(profile_manager_.SetUp());
   }
 
@@ -471,6 +480,10 @@ class IncidentReportingServiceTest : public testing::Test {
       receiver->AddIncidentForProcess(MakeTestIncident(nullptr));
   }
 
+#if defined(OS_WIN)
+  registry_util::RegistryOverrideManager registry_override_manager_;
+#endif
+
   // A mapping of profile name to its corresponding properties.
   std::map<std::string, ProfileProperties> profile_properties_;
 };