diff --git chrome/browser/profiles/incognito_helpers.cc chrome/browser/profiles/incognito_helpers.cc
index 6155e96..2125a436 100644
--- chrome/browser/profiles/incognito_helpers.cc
+++ chrome/browser/profiles/incognito_helpers.cc
@@ -8,13 +8,35 @@
 
 namespace chrome {
 
+namespace {
+BrowserContextIncognitoHelper* g_helper = nullptr;
+}  // namespace
+
+void SetBrowserContextIncognitoHelper(BrowserContextIncognitoHelper* helper) {
+  g_helper = helper;
+}
+
 content::BrowserContext* GetBrowserContextRedirectedInIncognito(
     content::BrowserContext* context) {
+  if (g_helper) {
+    content::BrowserContext* new_context =
+        g_helper->GetBrowserContextRedirectedInIncognito(context);
+    if (new_context)
+      return new_context;
+  }
+
   return static_cast<Profile*>(context)->GetOriginalProfile();
 }
 
 content::BrowserContext* GetBrowserContextOwnInstanceInIncognito(
     content::BrowserContext* context) {
+  if (g_helper) {
+    content::BrowserContext* new_context =
+        g_helper->GetBrowserContextOwnInstanceInIncognito(context);
+    if (new_context)
+      return new_context;
+  }
+
   return context;
 }
 
diff --git chrome/browser/profiles/incognito_helpers.h chrome/browser/profiles/incognito_helpers.h
index 4b43013..169ca47 100644
--- chrome/browser/profiles/incognito_helpers.h
+++ chrome/browser/profiles/incognito_helpers.h
@@ -11,6 +11,19 @@ class BrowserContext;
 
 namespace chrome {
 
+class BrowserContextIncognitoHelper {
+ public:
+  virtual content::BrowserContext* GetBrowserContextRedirectedInIncognito(
+      content::BrowserContext* context) = 0;
+  virtual content::BrowserContext* GetBrowserContextOwnInstanceInIncognito(
+      content::BrowserContext* context) = 0;
+ protected:
+  virtual ~BrowserContextIncognitoHelper() {}
+};
+
+// Allow CEF to hook the below methods.
+void SetBrowserContextIncognitoHelper(BrowserContextIncognitoHelper* helper);
+
 // Returns the original browser context even for Incognito contexts.
 content::BrowserContext* GetBrowserContextRedirectedInIncognito(
     content::BrowserContext* context);
diff --git chrome/browser/profiles/profile_manager.h chrome/browser/profiles/profile_manager.h
index 6554312..701cb0f 100644
--- chrome/browser/profiles/profile_manager.h
+++ chrome/browser/profiles/profile_manager.h
@@ -89,7 +89,7 @@ class ProfileManager : public base::NonThreadSafe,
   // acceptable. Returns null if creation of the new profile fails.
   // TODO(bauerb): Migrate calls from other code to GetProfileByPath(), then
   // make this method private.
-  Profile* GetProfile(const base::FilePath& profile_dir);
+  virtual Profile* GetProfile(const base::FilePath& profile_dir);
 
   // Returns total number of profiles available on this machine.
   size_t GetNumberOfProfiles();
@@ -117,7 +117,7 @@ class ProfileManager : public base::NonThreadSafe,
 
   // Returns true if the profile pointer is known to point to an existing
   // profile.
-  bool IsValidProfile(const void* profile);
+  virtual bool IsValidProfile(const void* profile);
 
   // Returns the directory where the first created profile is stored,
   // relative to the user data directory currently in use.
@@ -126,7 +126,7 @@ class ProfileManager : public base::NonThreadSafe,
   // Get the Profile last used (the Profile to which owns the most recently
   // focused window) with this Chrome build. If no signed profile has been
   // stored in Local State, hand back the Default profile.
-  Profile* GetLastUsedProfile(const base::FilePath& user_data_dir);
+  virtual Profile* GetLastUsedProfile(const base::FilePath& user_data_dir);
 
   // Get the path of the last used profile, or if that's undefined, the default
   // profile.