Make SourceLineResolver use RangeMap (#13). r=bryner

- Eliminate MemAddrMap from source_line_resolver.cc and adapt it to use
   RangeMap, also used by minidump.cc.
 - RangeMap operates on both a base address and a size, where MemAddrMap
   only used a base address, so the dumped symbol file format is modified
   to include size information.  dump_syms produces these files and
   SourceLineResolver consumes them.
 - Provide updated test data conforming to the new dumped symbol format.

http://groups.google.com/group/airbag-dev/browse_thread/thread/e9403cf3ad6336a1


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@21 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/processor/range_map.h

@@ -49,7 +49,7 @@ class RangeMap {
 
   // Locates the range encompassing the supplied address.  If there is
   // no such range, or if there is a parameter error, returns false.
-  bool RetrieveRange(const AddressType& address, EntryType* entry);
+  bool RetrieveRange(const AddressType& address, EntryType* entry) const;
 
   // Empties the range map, restoring it to the state it was when it was
   // initially created.
@@ -125,7 +125,7 @@ bool RangeMap<AddressType, EntryType>::StoreRange(const AddressType& base,
 template<typename AddressType, typename EntryType>
 bool RangeMap<AddressType, EntryType>::RetrieveRange(
     const AddressType& address,
-    EntryType*         entry) {
+    EntryType*         entry) const {
   if (!entry)
     return false;