Adds TCMalloc support for Android.

content/content_shell.gypi

Index: content/content_shell.gypi
diff --git a/content/content_shell.gypi b/content/content_shell.gypi
index 35e792841d7fee3fc9c3ff44cd99898927da5e41..149b83763921e1f72e448f1edd4343973483c6dc 100644
--- a/content/content_shell.gypi
+++ b/content/content_shell.gypi
@@ -194,6 +194,11 @@
             '../webkit/support/webkit_support.gyp:webkit_support',
           ],
         }],  # OS=="android"
+        ['OS=="android" and android_use_tcmalloc==1', {
+          'dependencies': [
+            '../base/allocator/allocator.gyp:allocator',
+          ],
+        }],

[Dai Mikurube (NOT FULLTIME), 2013/05/09 17:04:51]

Ah, but finally, I'm not sure it should be added here.  Do we have a better
place common for all Android-related things?  (e.g. base/base.gyp for Linux)

[bulach, 2013/05/09 17:33:58]

this is exactly the same as the block below :)
each target decides whether or not to link against allocator. I collapsed into a
single condition below.

         ['os_posix==1 and use_aura==1 and linux_use_tcmalloc==1', {
           'dependencies': [
             # This is needed by content/app/content_main_runner.cc