compile error with WebEngine on Mac OS X 10.9.2

I never tried to build Chromium before. I tried both your zip source package (0.1p1) and latest GIT (as described here https://qt.gitorious.org/qt-labs/qtwebengine/source/0402743339cbf9efe0ea4ebbd36b27bbc7e9e7a6:). they all fail at the same place

In file included from ../../src/3rdparty/chromium/third_party/skia/src/gpu/GrInOrderDrawBuffer.cpp:8:
In file included from ../../src/3rdparty/chromium/third_party/skia/src/gpu/GrInOrderDrawBuffer.h:13:
../../src/3rdparty/chromium/third_party/skia/src/gpu/GrAllocator.h:240:36: error: field 'fStorage' is uninitialized when used here [-Werror,-Wuninitialized]
GrSTAllocator() : INHERITED(N, fStorage.get()) {
^

It's probably fixed in latest Chromium sources (https://code.google.com/p/chromium/issues/detail?id=323017).