Please find the patch for armhf attached.
As of now it is still untested, as my buildbot is still busy building.
It should work for armel too, but I did not enable that in control yet.
diff -Naur chromium-browser-45.0.2454.85.orig/debian/control chromium-browser-45.0.2454.85/debian/control
--- chromium-browser-45.0.2454.85.orig/debian/control 2015-06-26 22:50:40.000000000 +0200
+++ chromium-browser-45.0.2454.85/debian/control 2015-09-24 16:07:46.665797443 +0200
@@ -86,7 +86,7 @@
Standards-Version: 3.9.6
Package: chromium
-Architecture: i386 amd64
+Architecture: i386 amd64 armhf
Depends:
${misc:Depends},
${shlibs:Depends},
@@ -105,7 +105,7 @@
This package contains the web browser component.
Package: chromium-dbg
-Architecture: i386 amd64
+Architecture: i386 amd64 armhf
Section: debug
Priority: extra
Depends:
@@ -149,7 +149,7 @@
elements of a web page at runtime (HTML, JavaScript, CSS, etc.).
Package: chromedriver
-Architecture: i386 amd64
+Architecture: i386 amd64 armhf
Depends:
${misc:Depends},
${shlibs:Depends},
diff -Naur chromium-browser-45.0.2454.85.orig/debian/rules chromium-browser-45.0.2454.85/debian/rules
--- chromium-browser-45.0.2454.85.orig/debian/rules 2015-04-19 20:30:39.000000000 +0200
+++ chromium-browser-45.0.2454.85/debian/rules 2015-09-24 16:22:44.817046666 +0200
@@ -81,6 +81,15 @@
# can't use system nss since net/third_party/nss is heavily patched
# can't use system ots (open text *summarizer*) since that's not google's ots (open text *sanitizer*)
+# on armhf we need to tell gyp that this is a hardfloat system
+# chromium defaults to soft, so there is nothing to do when targeting armel
+ifeq (armhf,$(shell dpkg-architecture -qDEB_HOST_ARCH))
+defines+=arm_float_abi=hard
+endif
+
+# don't use a sysroot for build, ever. (when targeting arm, gyp default to yes)
+defines+=sysroot=
+
# make gyp a little more informative
options+=--check \
--debug=includes \
