[Auto-roll] Bump up version to 3.29.34.0

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/523413003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23537 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Refactor libplatform unit tests to use GTest/GMock.

Also migrate them to src.

BUG=v8:3489
LOG=n
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/526043002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23541 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Removed dead #define.

It used the wrong tests, anyway...

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/526993002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23542 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
don't use cygwin tricks for windows
Revert "Remove DebuggerAgent."
Revert "Remove socket implementation from V8."

This reverts commit d1206b3d068caa3d6123d516cfc28c6c987b74d3.
This reverts commit 9080a44e04217c34157ce9d4de9fa892aa663e7e.

Conflicts:
	src/compiler/instruction-selector.cc
	src/compiler/x64/instruction-selector-x64.cc
Tweak last revert

Conflicts:
	tools/whitespace.txt