Auto-install/uninstall shared module dependencies for extensions.

chrome/browser/extensions/pending_extension_manager.h

Index: chrome/browser/extensions/pending_extension_manager.h
diff --git a/chrome/browser/extensions/pending_extension_manager.h b/chrome/browser/extensions/pending_extension_manager.h
index d275adf1a0d9457920827db4a7ef55377733f2c5..41bf30ca2e9ef37babe9adbdc64b11ea97c92f4b 100644
--- a/chrome/browser/extensions/pending_extension_manager.h
+++ b/chrome/browser/extensions/pending_extension_manager.h
@@ -80,6 +80,12 @@ class PendingExtensionManager {
       PendingExtensionInfo::ShouldAllowInstallPredicate should_allow_install,
       bool install_silently);
 
+  // Adds an extension that was depended on by another extension.
+  bool AddFromExtensionImport(
+      const std::string& id,
+      const GURL& update_url,
+      PendingExtensionInfo::ShouldAllowInstallPredicate should_allow_install);
+
   // Given an extension id and an update URL, schedule the extension
   // to be fetched, installed, and activated.
   bool AddFromExternalUpdateUrl(const std::string& id,