Adding suppression for bug_112278

tools/valgrind/memcheck/suppressions.txt

 # There are four kinds of suppressions in this file.
 # 1. third party stuff we have no control over
 #
 # 2. intentional unit test errors, or stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system (but a few aren't yet).
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 5648 matching lines @@
    fun:_ZN3WTF10fastMallocE*
    ...
    fun:_ZN7WebCore21MediaStreamDescriptor6createERKN3WTF6StringERKNS1_6VectorINS1_6RefPtrINS_17MediaStreamSourceEEEL*
    fun:_ZN6WebKit24WebMediaStreamDescriptor10initializeERKNS_9WebStringERKNS_9WebVectorINS_20WebMediaStreamSourceEEE
    fun:_ZN21PeerConnectionHandler28CreateWebKitStreamDescriptorEPN6webrtc20MediaStreamInterfaceE
    fun:_ZN21PeerConnectionHandler19OnAddStreamCallbackEPN6webrtc20MediaStreamInterfaceE
    fun:_ZN21PeerConnectionHandler11OnAddStreamEPN6webrtc20MediaStreamInterfaceE
    fun:_ZN36PeerConnectionHandlerTest_Basic_Test8TestBodyEv
 }
 
+{
+   bug_112278
+   Memcheck:Uninitialized
+   fun:fetch_texel_2d_f_rgba8888
+   fun:sample_2d_linear
+   fun:sample_linear_2d
+   fun:fetch_texel_lod
+   fun:fetch_texel
+   fun:_mesa_execute_program
+   fun:run_program
+   fun:_swrast_exec_fragment_program
+   fun:shade_texture_span
+   fun:_swrast_write_rgba_span
+   fun:general_triangle
+   fun:_swrast_validate_triangle
+   fun:_swrast_Triangle
+   fun:triangle_rgba
+   fun:_tnl_render_triangles_elts
+   fun:run_render
+   fun:_tnl_run_pipeline
+   fun:_tnl_draw_prims
+   fun:_tnl_vbo_draw_prims
+   fun:vbo_validated_drawrangeelements
+   fun:vbo_exec_DrawElements
+   fun:neutral_DrawElements
+}
+
 #-----------------------------------------------------------------------
 # 4. These only occur on our Google workstations
 
 {
    bug_todo_getdelim
    Memcheck:Leak
    fun:malloc
    fun:getdelim
    ...
    fun:call_init
    fun:_dl_init
 }
 {
    bug_todo_getdelim2
    Memcheck:Leak
    fun:malloc
    fun:getdelim
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }
 {
    bug_todo_grep
    Memcheck:Leak
    fun:malloc
    obj:/bin/grep
    obj:/bin/grep
 }