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_x86.h

@@ -57,7 +57,8 @@ class StackwalkerX86 : public Stackwalker {
   StackwalkerX86(const MDRawContextX86 *context,
                  MemoryRegion *memory,
                  const CodeModules *modules,
-                 SymbolSupplier *supplier);
+                 SymbolSupplier *supplier,
+                 SourceLineResolverInterface *resolver);
 
  private:
   // Implementation of Stackwalker, using x86 context (%ebp, %esp, %eip) and