Break DevTools content files out of browser.jar and move to a new DevTools
specific jar. Update all paths of the form:
chrome://browser/content/devtools/<X>
to
chrome://devtools/content/<Y>
where <Y> is the source tree path that comes after /devtools/client.
The current situation looks like this: Firefox launches the plugin-container
with two environment variables set:
LD_LIBRARY_PATH=$FIREFOX_DIR:$LD_LIBRARY_PATH
LD_PRELOAD=$FIREFOX_DIR/libmozgtk2.so:$LD_PRELOAD
libxul.so has a dependency on libmozgtk.so (without "2"), but libmozgtk2.so
has a SONAME of libmozgtk.so, so ld.so recognizes libmozgtk2.so as a
dependency of libxul.so, and uses it instead of the actual libmozgtk.so,
making the plugin-container use Gtk+2 instead of Gtk+3 to load Gtk+2 plugins.
Now, ASan sets things up in shared libraries such that they needs a symbol
from the executable binary. So in the case of plugin-container, the
plugin-container executable itself contains some ASan symbols such as
__asan_init_v3. libmozgtk2.so, OTOH, contains an undefined weak reference to
that symbol, like all other Firefox shared libraries.
Since libmozgtk2.so is LD_PRELOADed, it is loaded _before_ the
plugin-container executable, and __asan_init_v3 can't be resolved.
Disabling ASan for libmozgtk2.so would be a possibility, but the build system
doesn't really know how to do that, and filtering out -fsanitize=address
can be fragile.
The alternative possibility, implemented here, is to change the library
loading strategy, renaming libmozgtk2.so to gtk2/libmozgtk.so, and setting
the following environment variable when Firefox launches the plugin-container:
LD_LIBRARY_PATH=$FIREFOX_DIR/gtk2:$FIREFOX_DIR:$LD_LIBRARY_PATH
packager.py itself has been able to do preprocessing since the beginning.
For some reason, Makefile.in-driven preprocessing was kept back then, and
never was removed, and even worse, concatenation was added on top of it.
There is however a downside to the current way of doing things: error
reporting is given relative to the given manifest, which in the current
case is the preprocessed/concatenated file, so line numbers don't match
what is in the file in the source tree. However, when packager.py does
preprocessing itself, line numbers are reported properly.
Thus, switch all package manifests to packager.py-driven preprocessing.
This should not have any effect on nightly or aurora.
Also fix browser/installer/windows/Makefile.in
webapprt/win/Makefile.in to use the variable instead
of the file
