Update build configuration for eLinux after update to Chromium 37.

The build configuration requires the following changes:
- toolkit_views=1: for native_theme_aura, as otherwise
  nine_image_painter_factory.cc would be excluded.
- use_system_harfbuzz=0: we do not want to rely on this
  being provided on the system, therefore being explicit.
- want_separate_host_toolset=1: assures that icuuc gyp
  target will be available.

The file gl_surface_ozone.cc must be added to the exclusion
list to avoid duplicate symbols with gl_surface_at.cpp.

The defines EGL_API_FB and LINUX must be set to 1,
to explicitly define that we are using EGL and are building
for a linux target.

Change-Id: If6722ecbfd0655fe7852d52a606f27c18304f717
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>

3rdparty @ 2c3ccc79

-Subproject commit cae02d31f1b15b139af822aa7559c5157780dbbe
+Subproject commit 2c3ccc7994980d954ec0188ea3fa3d27424ef32e

src/core/config/embedded_linux.pri

@@ -29,6 +29,7 @@ GYP_CONFIG += \
     p2p_apis=0 \
     safe_browsing=0 \
     toolkit_uses_gtk=0 \
+    toolkit_views=1 \
     use_ash=0 \
     use_aura=1 \
     use_cairo=0 \
@@ -43,8 +44,9 @@ GYP_CONFIG += \
     use_ozone=1 \
     use_pango=0 \
     use_pulseaudio=0 \
+    use_system_harfbuzz=0 \
     use_system_icu=1 \
     use_x11=0 \
     v8_use_snapshot=false \
-    want_separate_host_toolset=0 \
+    want_separate_host_toolset=1 \
 

src/core/qtwebengine_extras.gypi

@@ -50,6 +50,7 @@
       ['exclude', 'gl_surface_glx\\.cc$'],
       ['exclude', 'gl_surface_x11\\.cc$'],
       ['exclude', 'gl_surface_win\\.cc$'],
+      ['exclude', 'gl_surface_ozone\\.cc$'],
       # Avoid the ATL dependency to allow building with VS Express
       ['exclude', 'browser/accessibility/accessibility_tree_formatter\\.(cc|h)$',],
       ['exclude', 'browser/accessibility/accessibility_tree_formatter_android\\.(cc|h)$',],
@@ -78,6 +79,8 @@
             # At runtime the env variable SSL_CERT_DIR can be used to override this
             'OPENSSLDIR="/usr/lib/ssl"',
             'OPENSSL_LOAD_CONF',
+            'EGL_API_FB=1',
+            'LINUX=1',
         ],
         'defines!': [
             'OPENSSLDIR="/etc/ssl"',