cc: Switch time_source.h and timing_function* to Chrome coding style.

BUG=144576,144577
TEST=cc_unittests
[email protected]

Review URL: https://codereview.chromium.org/11411024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@168302 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/cc/delay_based_time_source.h b/cc/delay_based_time_source.h
index da8e0e7c..516fde9c 100644
--- a/cc/delay_based_time_source.h
+++ b/cc/delay_based_time_source.h
@@ -11,6 +11,8 @@
 
 namespace cc {
 
+class Thread;
+
 // This timer implements a time source that achieves the specified interval
 // in face of millisecond-precision delayed callbacks and random queueing delays.
 class CC_EXPORT DelayBasedTimeSource : public TimeSource {