Compile specific parts of the Android build with -O2.

cc/blink/cc_blink.gyp

Index: cc/blink/cc_blink.gyp
diff --git a/cc/blink/cc_blink.gyp b/cc/blink/cc_blink.gyp
index d9f19ea1f02e10b752d31ca5b86404c68b9447d5..ad85c42db2c2479c51638f66613de37ef0bab5a1 100644
--- a/cc/blink/cc_blink.gyp
+++ b/cc/blink/cc_blink.gyp
@@ -3,6 +3,18 @@
 # found in the LICENSE file.
 
 {
+  'target_defaults': {

[Sami, 2014/09/10 12:44:56]

Any idea how big the perf improvements are in cc_blink? I'd be suprised if it
makes any difference because this is mostly just plumbing code between cc and
blink.

[Fabrice (no longer in Chrome), 2014/09/10 14:51:12]

Done.
After testing it seems to have no effect and saves us 4 kiB.

+    'configurations': {
+      'Release': {
+        'conditions': [
+          ['OS=="android"', {
+            'cflags!': ['-Os'],
+            'cflags': ['-O2'],
+          }],
+        ],
+      },
+    },
+  },
   'targets': [
     {
       # GN version: //cc/blink