Make clang the default Android compiler.

gyp/common_conditions.gypi

 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # conditions used in both common.gypi and skia.gyp in chromium
 #
 {
   'defines': [
     'SK_ALLOW_STATIC_GLOBAL_INITIALIZERS=<(skia_static_initializers)',
@@ skipping 203 matching lines @@
             },
           }],
         ],
       },
     ],
 
     # The following section is common to linux + derivatives and android
     [ 'skia_os in ["linux", "freebsd", "openbsd", "solaris", "chromeos", "android"]',
       {
         'cflags': [
           '-g',

[djsollen, 2016/04/25 18:18:26]

yeah, it was defined here.

           '-fno-exceptions',
           '-fstrict-aliasing',
 
           '-Wall',
           '-Wextra',
           '-Winit-self',
           '-Wpointer-arith',
           '-Wsign-compare',
 
           '-Wno-unused-parameter',
@@ skipping 378 matching lines @@
 
           # Android Text Tuning
           'SK_GAMMA_EXPONENT=1.4',
           'SK_GAMMA_CONTRAST=0.0',
         ],
         # Android defines a fixed gamma exponent instead of using SRGB
         'defines!': [
           'SK_GAMMA_SRGB',
         ],
         'configurations': {
-          'Debug': {
-            'cflags': ['-g']

[mtklein, 2016/04/25 17:44:17]

Was this redundant?

-          },
           'Release': {
             'cflags': ['-O2'],
+            'conditions': [
+              [ 'skia_clang_build', {
+                'cflags!': ['-g'],
+                'cflags': [ '-gline-tables-only' ],
+              }],
+            ],
           },
         },
         'libraries': [
           '-llog',
         ],
         'cflags': [
           '-fuse-ld=gold',
         ],
         'conditions': [
           [ '"x86" in skia_arch_type', {
@@ skipping 48 matching lines @@
           'LD_RUNPATH_SEARCH_PATHS': ['@executable_path/.'],
       },
     }],
 
   ], # end 'conditions'
   # The Xcode SYMROOT must be at the root. See build/common.gypi in chromium for more details
   'xcode_settings': {
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }