Remove static thread pointers from CC

cc/rate_limiter.cc

Index: cc/rate_limiter.cc
diff --git a/cc/rate_limiter.cc b/cc/rate_limiter.cc
index 5d9cf8191a3791fa1e063257f8410d81efb7e2c7..f5c190016a187c9e8d1ca3a1d9e011326d4d7b5f 100644
--- a/cc/rate_limiter.cc
+++ b/cc/rate_limiter.cc
@@ -36,13 +36,14 @@ private:
     scoped_refptr<RateLimiter> m_rateLimiter;
 };
 
-scoped_refptr<RateLimiter> RateLimiter::create(WebKit::WebGraphicsContext3D* context, RateLimiterClient *client)
+scoped_refptr<RateLimiter> RateLimiter::create(WebKit::WebGraphicsContext3D* context, RateLimiterClient *client, Proxy* proxy)
 {
-    return make_scoped_refptr(new RateLimiter(context, client));
+    return make_scoped_refptr(new RateLimiter(context, client, proxy));
 }
 
-RateLimiter::RateLimiter(WebKit::WebGraphicsContext3D* context, RateLimiterClient *client)
-    : m_context(context)
+RateLimiter::RateLimiter(WebKit::WebGraphicsContext3D* context, RateLimiterClient *client, Proxy* proxy)
+    : m_proxy(proxy)
+    , m_context(context)
     , m_active(false)
     , m_client(client)
 {
@@ -60,7 +61,7 @@ void RateLimiter::start()
 
     TRACE_EVENT0("cc", "RateLimiter::start");
     m_active = true;
-    Proxy::mainThread()->postTask(RateLimiter::Task::create(this));
+    m_proxy->mainThread()->postTask(RateLimiter::Task::create(this));
 }
 
 void RateLimiter::stop()