Fix issue #2448075: aapt doesn't fix up activity-alias android:targetActivity links

And related:

- The aapt tool now sets a resource configurations sdk level to match any configs
  that have been set (for example if you specify density your sdk level will be
  at least 4).
- New option to modify the targetPackage attribute of instrumentation.
- Clean up of aapt options help.
- Fix of UI type values to leave 0 for "unspecified".
- Make the UI mode config APIs public.
diff --git a/tools/aapt/Resource.cpp b/tools/aapt/Resource.cpp
index ae4bd14..7142b1c 100644
--- a/tools/aapt/Resource.cpp
+++ b/tools/aapt/Resource.cpp
@@ -562,9 +562,10 @@
     node->addAttribute(ns, attr, String16(value));
 }
 
-static void fullyQualifyClassName(String8& package, sp<XMLNode> node) {
+static void fullyQualifyClassName(const String8& package, sp<XMLNode> node,
+        const String16& attrName) {
     XMLNode::attribute_entry* attr = node->editAttribute(
-            String16("http://schemas.android.com/apk/res/android"), String16("name"));
+            String16("http://schemas.android.com/apk/res/android"), attrName);
     if (attr != NULL) {
         String8 name(attr->string);
 
@@ -635,19 +636,40 @@
         // Make class names fully qualified
         sp<XMLNode> application = root->getChildElement(String16(), String16("application"));
         if (application != NULL) {
-            fullyQualifyClassName(origPackage, application);
+            fullyQualifyClassName(origPackage, application, String16("name"));
 
             Vector<sp<XMLNode> >& children = const_cast<Vector<sp<XMLNode> >&>(application->getChildren());
             for (size_t i = 0; i < children.size(); i++) {
                 sp<XMLNode> child = children.editItemAt(i);
                 String8 tag(child->getElementName());
                 if (tag == "activity" || tag == "service" || tag == "receiver" || tag == "provider") {
-                    fullyQualifyClassName(origPackage, child);
+                    fullyQualifyClassName(origPackage, child, String16("name"));
+                } else if (tag == "activity-alias") {
+                    fullyQualifyClassName(origPackage, child, String16("name"));
+                    fullyQualifyClassName(origPackage, child, String16("targetActivity"));
                 }
             }
         }
     }
 
+    // Deal with manifest package name overrides
+    const char* instrumentationPackageNameOverride = bundle->getInstrumentationPackageNameOverride();
+    if (instrumentationPackageNameOverride != NULL) {
+        // Fix up instrumentation targets.
+        Vector<sp<XMLNode> >& children = const_cast<Vector<sp<XMLNode> >&>(root->getChildren());
+        for (size_t i = 0; i < children.size(); i++) {
+            sp<XMLNode> child = children.editItemAt(i);
+            String8 tag(child->getElementName());
+            if (tag == "instrumentation") {
+                XMLNode::attribute_entry* attr = child->editAttribute(
+                        String16("http://schemas.android.com/apk/res/android"), String16("targetPackage"));
+                if (attr != NULL) {
+                    attr->string.setTo(String16(instrumentationPackageNameOverride));
+                }
+            }
+        }
+    }
+    
     return NO_ERROR;
 }