Fix format specifier in proc maps to support 32-bit architectures.

R=ivanpe@chromium.org

Review URL: https://codereview.chromium.org/1288323003

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1486 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/google_breakpad/processor/proc_maps_linux.h

@@ -23,8 +23,8 @@ struct MappedMemoryRegion {
   };
 
   // The address range [start,end) of mapped memory.
-  uintptr_t start;
-  uintptr_t end;
+  uint64_t start;
+  uint64_t end;
 
   // Byte offset into |path| of the range mapped into memory.
   uint64_t offset;