aapt: Allow raw "%" in unformatted string-arrays

Commit 15fe2cb added format checking for translatable strings, enforcing
the use of positional args.  This check can be disabled on <string>
values with translatable="false" or formatted="false".  But they didn't
check for those attributes on <string-array>, so some of CM's strings
fail when they're not really format strings, just because they contain
percent signs.  (e.g. brightness widget's "Auto/Dim/40%/100%")

So now the formatted/translatable attributes are checked in string-array
too, and we can restore our proper percent signs.

Change-Id: I3478ab7e0b939e61fe0cec20201ac55096264080

tools/aapt/ResourceTable.cpp

@@ -1322,6 +1322,22 @@ status_t compileResourceFile(Bundle* bundle,
                     }
                 }
             } else if (strcmp16(block.getElementName(&len), string_array16.string()) == 0) {
+                // Check whether these strings need valid formats.
+                // (simplified form of what string16 does above)
+                size_t n = block.getAttributeCount();
+                for (size_t i = 0; i < n; i++) {
+                    size_t length;
+                    const uint16_t* attr = block.getAttributeName(i, &length);
+                    if (strcmp16(attr, translatable16.string()) == 0
+                            || strcmp16(attr, formatted16.string()) == 0) {
+                        const uint16_t* value = block.getAttributeStringValue(i, &length);
+                        if (strcmp16(value, false16.string()) == 0) {
+                            curIsFormatted = false;
+                            break;
+                        }
+                    }
+                }
+
                 curTag = &string_array16;
                 curType = array16;
                 curFormat = ResTable_map::TYPE_REFERENCE|ResTable_map::TYPE_STRING;