chrome: Fix PreferenceTest failures (see issue #2969)

libcef/browser/prefs/browser_prefs.cc

@@ -88,6 +88,20 @@ std::string GetAcceptLanguageList(Profile* profile) {
 const char kUserPrefsFileName[] = "UserPrefs.json";
 const char kLocalPrefsFileName[] = "LocalPrefs.json";
 
+void RegisterProfilePrefs(PrefRegistrySimple* registry) {
+  const base::CommandLine* command_line =
+      base::CommandLine::ForCurrentProcess();
+  if (command_line->HasSwitch(switches::kEnablePreferenceTesting)) {
+    // Preferences used with unit tests.
+    registry->RegisterBooleanPref("test.bool", true);
+    registry->RegisterIntegerPref("test.int", 2);
+    registry->RegisterDoublePref("test.double", 5.0);
+    registry->RegisterStringPref("test.string", "default");
+    registry->RegisterListPref("test.list");
+    registry->RegisterDictionaryPref("test.dict");
+  }
+}
+
 std::unique_ptr<PrefService> CreatePrefService(Profile* profile,
                                                const base::FilePath& cache_path,
                                                bool persist_user_preferences) {
@@ -209,16 +223,6 @@ std::unique_ptr<PrefService> CreatePrefService(Profile* profile,
                                 false);
   registry->RegisterBooleanPref(prefs::kWebRTCAllowLegacyTLSProtocols, false);
 
-  if (command_line->HasSwitch(switches::kEnablePreferenceTesting)) {
-    // Preferences used with unit tests.
-    registry->RegisterBooleanPref("test.bool", true);
-    registry->RegisterIntegerPref("test.int", 2);
-    registry->RegisterDoublePref("test.double", 5.0);
-    registry->RegisterStringPref("test.string", "default");
-    registry->RegisterListPref("test.list");
-    registry->RegisterDictionaryPref("test.dict");
-  }
-
   if (profile) {
     // Call RegisterProfilePrefs() for all services listed by
     // EnsureBrowserContextKeyedServiceFactoriesBuilt().
@@ -235,6 +239,7 @@ std::unique_ptr<PrefService> CreatePrefService(Profile* profile,
     MediaDeviceIDSalt::RegisterProfilePrefs(registry.get());
     ProfileNetworkContextService::RegisterProfilePrefs(registry.get());
     safe_browsing::RegisterProfilePrefs(registry.get());
+    RegisterProfilePrefs(registry.get());
 
     const std::string& locale =
         command_line->GetSwitchValueASCII(switches::kLang);

libcef/browser/prefs/browser_prefs.h

@@ -11,6 +11,7 @@ namespace base {
 class FilePath;
 }
 
+class PrefRegistrySimple;
 class PrefService;
 class Profile;
 
@@ -19,6 +20,9 @@ namespace browser_prefs {
 // Name for the user prefs JSON file.
 extern const char kUserPrefsFileName[];
 
+// Register preferences specific to CEF.
+void RegisterProfilePrefs(PrefRegistrySimple* registry);
+
 // Create the PrefService used to manage pref registration and storage.
 // |profile| will be nullptr for the system-level PrefService.
 std::unique_ptr<PrefService> CreatePrefService(Profile* profile,

patch/patches/chrome_runtime.patch

@@ -178,3 +178,37 @@ index 29ba5f21b38f..3ce05420eb78 100644
  }
  
  base::FilePath ChromeContentBrowserClient::GetDefaultDownloadDirectory() {
+diff --git chrome/browser/prefs/browser_prefs.cc chrome/browser/prefs/browser_prefs.cc
+index fbfeff04ce25..f5ab9f9bb8cf 100644
+--- chrome/browser/prefs/browser_prefs.cc
++++ chrome/browser/prefs/browser_prefs.cc
+@@ -10,6 +10,7 @@
+ #include "build/branding_buildflags.h"
+ #include "build/build_config.h"
+ #include "build/chromeos_buildflags.h"
++#include "cef/libcef/features/features.h"
+ #include "chrome/browser/about_flags.h"
+ #include "chrome/browser/accessibility/accessibility_labels_service.h"
+ #include "chrome/browser/accessibility/accessibility_ui.h"
+@@ -160,6 +161,10 @@
+ #include "chrome/browser/background/background_mode_manager.h"
+ #endif
+ 
++#if BUILDFLAG(ENABLE_CEF)
++#include "cef/libcef/browser/prefs/browser_prefs.h"
++#endif
++
+ #if BUILDFLAG(ENABLE_EXTENSIONS)
+ #include "chrome/browser/accessibility/animation_policy_prefs.h"
+ #include "chrome/browser/apps/platform_apps/shortcut_manager.h"
+@@ -959,6 +964,10 @@ void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry,
+   RegisterSessionServiceLogProfilePrefs(registry);
+ #endif
+ 
++#if BUILDFLAG(ENABLE_CEF)
++  browser_prefs::RegisterProfilePrefs(registry);
++#endif
++
+ #if BUILDFLAG(ENABLE_EXTENSIONS)
+   ExtensionWebUI::RegisterProfilePrefs(registry);
+   RegisterAnimationPolicyPrefs(registry);

tests/ceftests/preference_unittest.cc

@@ -31,6 +31,11 @@ const char kPrefString[] = "string";
 const char kPrefList[] = "list";
 const char kPrefDict[] = "dict";
 
+std::string* PendingAction() {
+  static std::string str;
+  return &str;
+}
+
 // Browser-side app delegate.
 class PreferenceBrowserTest : public client::ClientAppBrowser::Delegate {
  public:
@@ -77,7 +82,7 @@ void ValidateBool(CefRefPtr<CefRequestContext> context,
   value = context->GetPreference(name);
   EXPECT_TRUE(value.get());
   EXPECT_EQ(VTYPE_BOOL, value->GetType());
-  EXPECT_EQ(expected, value->GetBool());
+  EXPECT_EQ(expected, value->GetBool()) << *PendingAction();
 }
 
 void ValidateInt(CefRefPtr<CefRequestContext> context,
@@ -100,7 +105,7 @@ void ValidateInt(CefRefPtr<CefRequestContext> context,
   value = context->GetPreference(name);
   EXPECT_TRUE(value.get());
   EXPECT_EQ(VTYPE_INT, value->GetType());
-  EXPECT_EQ(expected, value->GetInt());
+  EXPECT_EQ(expected, value->GetInt()) << *PendingAction();
 }
 
 void ValidateDouble(CefRefPtr<CefRequestContext> context,
@@ -123,7 +128,7 @@ void ValidateDouble(CefRefPtr<CefRequestContext> context,
   value = context->GetPreference(name);
   EXPECT_TRUE(value.get());
   EXPECT_EQ(VTYPE_DOUBLE, value->GetType());
-  EXPECT_EQ(expected, value->GetDouble());
+  EXPECT_EQ(expected, value->GetDouble()) << *PendingAction();
 }
 
 void ValidateString(CefRefPtr<CefRequestContext> context,
@@ -146,7 +151,8 @@ void ValidateString(CefRefPtr<CefRequestContext> context,
   value = context->GetPreference(name);
   EXPECT_TRUE(value.get());
   EXPECT_EQ(VTYPE_STRING, value->GetType());
-  EXPECT_STREQ(expected.c_str(), value->GetString().ToString().c_str());
+  EXPECT_STREQ(expected.c_str(), value->GetString().ToString().c_str())
+      << *PendingAction();
 }
 
 void ValidateList(CefRefPtr<CefRequestContext> context,
@@ -216,7 +222,7 @@ void ValidateNoExist(CefRefPtr<CefRequestContext> context,
   }
 
   value = context->GetPreference(name);
-  EXPECT_FALSE(value.get());
+  EXPECT_FALSE(value.get()) << *PendingAction();
 }
 
 void PopulateRootDefaults(CefRefPtr<CefDictionaryValue> val) {
@@ -448,23 +454,37 @@ TEST(PreferenceTest, GlobalSetGetShared) {
   CefRequestContextSettings settings;
   CefRefPtr<CefRequestContext> context4 =
       CefRequestContext::CreateContext(settings, nullptr);
-  EXPECT_TRUE(context.get());
+  EXPECT_TRUE(context4.get());
 
   // Set/get the values on the first context.
+  *PendingAction() = "Set/get the values on the first context";
   ValidateSetGet(context, event);
   event->Wait();
 
   // Get the values from the 2nd and 3rd contexts. They should be the same.
+  *PendingAction() = "Get the values from the 2nd context.";
   ValidateGet(context2, event);
   event->Wait();
+  *PendingAction() = "Get the values from the 3rd context.";
   ValidateGet(context3, event);
   event->Wait();
 
-  // Get the values from the 4th context. They should be at the default.
-  ValidateDefaults(context4, false, event);
+  // Get the values from the 4th context.
+  *PendingAction() = "Get the values from the 4th context.";
+  if (IsChromeRuntimeEnabled()) {
+    // With the Chrome runtime, prefs set via an incognito profile will become
+    // an overlay on top of the global (parent) profile. The incognito profile
+    // shares the prefs in this case because they were set via the global
+    // profile.
+    ValidateGet(context4, event);
+  } else {
+    // They should be at the default.
+    ValidateDefaults(context4, false, event);
+  }
   event->Wait();
 
   // Reset to the default values.
+  *PendingAction() = "Reset to the default values.";
   ValidateDefaults(context, true, event);
   event->Wait();
 }
@@ -524,23 +544,30 @@ TEST(PreferenceTest, CustomSetGetShared) {
   // Unassociated context.
   CefRefPtr<CefRequestContext> context4 =
       CefRequestContext::CreateContext(settings, nullptr);
-  EXPECT_TRUE(context.get());
+  EXPECT_TRUE(context4.get());
 
   // Set/get the values on the first context.
+  *PendingAction() = "Set/get the values on the first context";
   ValidateSetGet(context, event);
   event->Wait();
 
   // Get the values from the 2nd and 3d contexts. They should be the same.
+  *PendingAction() = "Get the values from the 2nd context.";
   ValidateGet(context2, event);
   event->Wait();
+  *PendingAction() = "Get the values from the 3rd context.";
   ValidateGet(context3, event);
   event->Wait();
 
   // Get the values from the 4th context. They should be at the default.
+  // This works with the Chrome runtime because the preference changes only
+  // exist in the other incognito profile's overlay.
+  *PendingAction() = "Get the values from the 4th context.";
   ValidateDefaults(context4, false, event);
   event->Wait();
 
   // Reset to the default values.
+  *PendingAction() = "Reset to the default values.";
   ValidateDefaults(context, true, event);
   event->Wait();
 }