Add support for Win64 stack unwind data as STACK CFI

This is a copy of https://breakpad.appspot.com/1264002/ where code review took place.

See https://bugzilla.mozilla.org/show_bug.cgi?id=548035 and https://code.google.com/p/chromium/issues/detail?id=115922

Credit to Mikhail I. Izmestev <izmmishao5@gmail.com> for original patch in https://breakpad.appspot.com/345002/

BUG=572
TEST=Run dump_syms_unittest after compiling dump_syms_regtest.cc with x64 toolchain
R=mark@chromium.org

Review URL: https://breakpad.appspot.com/1274002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1290 4c0a9323-5329-0410-9bdc-e9ce6186880e

1 files changed, 10 insertions, 0 deletions

diff --git a/src/common/windows/pdb_source_line_writer.h b/src/common/windows/pdb_source_line_writer.h
index be6121c3..d928a607 100644
--- a/src/common/windows/pdb_source_line_writer.h
+++ b/src/common/windows/pdb_source_line_writer.h
@@ -148,6 +148,16 @@ class PDBSourceLineWriter {
   bool PrintSourceFiles();
 
   // Outputs all of the frame information necessary to construct stack
+  // backtraces in the absence of frame pointers. For x86 data stored in
+  // .pdb files. Returns true on success.
+  bool PrintFrameDataUsingPDB();
+
+  // Outputs all of the frame information necessary to construct stack
+  // backtraces in the absence of frame pointers. For x64 data stored in
+  // .exe, .dll files. Returns true on success.
+  bool PrintFrameDataUsingEXE();
+
+  // Outputs all of the frame information necessary to construct stack
   // backtraces in the absence of frame pointers.  Returns true on success.
   bool PrintFrameData();