Add an abstract interface to SourceLineResolver, and allow any implementation

to be used with MinidumpProcessor.  The basic SourceLineResolver is now a
public interface (#89)



git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@83 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/processor/stackwalker_ppc.cc

@@ -45,8 +45,9 @@ namespace google_airbag {
 StackwalkerPPC::StackwalkerPPC(const MDRawContextPPC *context,
                                MemoryRegion *memory,
                                const CodeModules *modules,
-                               SymbolSupplier *supplier)
-    : Stackwalker(memory, modules, supplier),
+                               SymbolSupplier *supplier,
+                               SourceLineResolverInterface *resolver)
+    : Stackwalker(memory, modules, supplier, resolver),
       context_(context) {
   if (memory_->GetBase() + memory_->GetSize() - 1 > 0xffffffff) {
     // This implementation only covers 32-bit ppc CPUs.  The limits of the