MIPS: modified gypi files to support build

gyp/common_variables.gypi

Index: gyp/common_variables.gypi
diff --git a/gyp/common_variables.gypi b/gyp/common_variables.gypi
index c8b069ce685345a075b37995c6de40b4eda59085..70bf599967583a7d5dca1db0d71823d1d5a21f9b 100644
--- a/gyp/common_variables.gypi
+++ b/gyp/common_variables.gypi
@@ -97,6 +97,10 @@
           'arm_version%': 7,
           'arm_neon%': 0, # neon asm files known not to work with the ios build
         }],
+        [ 'skia_os == "linux"' and 'skia_arch_type == "mips"', {

[djsollen, 2014/06/02 12:39:10]

If you're always going to assign them to 0 then just do it in the level 1
dictionary below and delete this block.

+          'mips_dsp%': 0,
+          'mips_dspr2%': 0,
+        }],
         [ 'skia_os in ["android", "nacl"] and not skia_android_framework',
           # skia_freetype_static - on OS variants that normally would
           #     dynamically link the system FreeType library, don't do
@@ -189,6 +193,10 @@
     'arm_version%': '<(arm_version)',
     'arm_neon%': '<(arm_neon)',
     'arm_neon_optional%': 0,
+    'mips_dsp%': '<(mips_dsp)',

[djsollen, 2014/06/02 12:39:10]

this can just be...

'mips_dsp%': 0,
'mips_dspr2%': 0,

+    'mips_dspr2%': '<(mips_dspr2)',
+    'mips_dsp_optional%': 0,
+    'mips_dspr2_optional%': 0,
     'skia_os%': '<(skia_os)',
     'os_posix%': '<(os_posix)',