Communicate OS and CPU to SymbolSupplier (#107). r=bryner

Interface change: moved a few fields around in ProcessState; added new
arguments to Stackwalker and SymbolSupplier.

http://groups.google.com/group/airbag-dev/browse_thread/thread/17e4a48ec3ede932


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@101 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/processor/stackwalker_ppc.h

@@ -53,7 +53,8 @@ class StackwalkerPPC : public Stackwalker {
   // register state corresponding to the innermost called frame to be
   // included in the stack.  The other arguments are passed directly through
   // to the base Stackwalker constructor.
-  StackwalkerPPC(const MDRawContextPPC *context,
+  StackwalkerPPC(const SystemInfo *system_info,
+                 const MDRawContextPPC *context,
                  MemoryRegion *memory,
                  const CodeModules *modules,
                  SymbolSupplier *supplier,