Create snapshot/mac and move some files from snapshot and util to there

snapshot/mac/mach_o_image_symbol_table_reader.cc

Index: snapshot/mac/mach_o_image_symbol_table_reader.cc
diff --git a/util/mac/mach_o_image_symbol_table_reader.cc b/snapshot/mac/mach_o_image_symbol_table_reader.cc
similarity index 97%
rename from util/mac/mach_o_image_symbol_table_reader.cc
rename to snapshot/mac/mach_o_image_symbol_table_reader.cc
index 8db0109c541a16c7031d11d1dbc9ffb2a20d5f9e..ff264471199c69e72d4b97862b5e6144ffe4be70 100644
--- a/util/mac/mach_o_image_symbol_table_reader.cc
+++ b/snapshot/mac/mach_o_image_symbol_table_reader.cc
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "util/mac/mach_o_image_symbol_table_reader.h"
+#include "snapshot/mac/mach_o_image_symbol_table_reader.h"
 
 #include <mach-o/loader.h>
 #include <mach-o/nlist.h>
@@ -43,8 +43,9 @@ class MachOImageSymbolTableReaderInitializer {
         linkedit_range_(),
         process_reader_(process_reader),
         linkedit_segment_(linkedit_segment) {
-    linkedit_range_.SetRange(
-        process_reader_, linkedit_segment->Address(), linkedit_segment->Size());
+    linkedit_range_.SetRange(process_reader_->Is64Bit(),
+                             linkedit_segment->Address(),
+                             linkedit_segment->Size());
     DCHECK(linkedit_range_.IsValid());
   }
 
@@ -198,7 +199,7 @@ class MachOImageSymbolTableReaderInitializer {
   bool IsInLinkEditSegment(mach_vm_address_t address,
                            mach_vm_size_t size,
                            const char* tag) const {
-    CheckedMachAddressRange subrange(process_reader_, address, size);
+    CheckedMachAddressRange subrange(process_reader_->Is64Bit(), address, size);
     if (!subrange.IsValid()) {
       LOG(WARNING) << base::StringPrintf("invalid %s range (0x%llx + 0x%llx)",
                                          tag,