[MIPS] Add build support in Skia for MIPS.

skia/skia.gyp

Index: skia/skia.gyp
diff --git a/skia/skia.gyp b/skia/skia.gyp
index 747427c40043d4718c1d63057990636eb05327e8..16e48914b9d1ada72ad64a00a898c6bb3a3227ee 100644
--- a/skia/skia.gyp
+++ b/skia/skia.gyp
@@ -353,7 +353,7 @@
             '__ARM_HAVE_NEON',
           ],
         }],
-        [ 'target_arch == "arm"', {
+        [ 'target_arch == "arm" or target_arch == "mipsel"', {
           'sources!': [
             '../third_party/skia/src/opts/opts_check_SSE2.cpp'
           ],
@@ -665,7 +665,8 @@
         '../third_party/skia/src/core',
       ],
       'conditions': [
-        [ 'os_posix == 1 and OS != "mac" and OS != "android" and target_arch != "arm"', {
+        [ 'os_posix == 1 and OS != "mac" and OS != "android" and \
+           target_arch != "arm" and target_arch != "mipsel"', {
           'cflags': [
             '-msse2',
           ],
@@ -675,7 +676,7 @@
             'SK_BUILD_FOR_ANDROID_NDK',
           ],
         }],
-        [ 'target_arch != "arm"', {
+        [ 'target_arch != "arm" and target_arch != "mipsel"', {
           'sources': [
             '../third_party/skia/src/opts/SkBitmapProcState_opts_SSE2.cpp',
             '../third_party/skia/src/opts/SkBlitRect_opts_SSE2.cpp',
@@ -690,8 +691,8 @@
               ],
             }],
           ],
-        },
-        {  # arm
+        }],
+        [ 'target_arch == "arm"', {
           'conditions': [
             [ 'armv7 == 1', {
               'defines': [
@@ -752,6 +753,16 @@
             '../third_party/skia/src/opts/SkBlitRow_opts_arm.cpp',
           ],
         }],
+        [ 'target_arch == "mipsel"',{
+          'cflags': [
+            '-fomit-frame-pointer',
+          ],
+          'sources': [
+            '../third_party/skia/src/opts/SkBitmapProcState_opts_none.cpp',
+            '../third_party/skia/src/opts/SkBlitRow_opts_none.cpp',
+            '../third_party/skia/src/opts/SkUtils_opts_none.cpp',
+          ],
+        }],
       ],
     },
     # For the same lame reasons as what is done for skia_opts, we have to