Don't set QUIC's write alarm if we are connection flow control blocked.

net/quic/quic_connection_test.cc

Index: net/quic/quic_connection_test.cc
diff --git a/net/quic/quic_connection_test.cc b/net/quic/quic_connection_test.cc
index 7cfd5ab42218c09334ef889e45076a7d46d72469..aed07e5f05183be9d8f655257116b2cbe2a652ce 100644
--- a/net/quic/quic_connection_test.cc
+++ b/net/quic/quic_connection_test.cc
@@ -610,7 +610,7 @@ class QuicConnectionTest : public ::testing::TestWithParam<QuicVersion> {
         Return(kMaxPacketSize));
     ON_CALL(*send_algorithm_, OnPacketSent(_, _, _, _, _))
         .WillByDefault(Return(true));
-    EXPECT_CALL(visitor_, HasPendingWrites()).Times(AnyNumber());
+    EXPECT_CALL(visitor_, WillingAndAbleToWrite()).Times(AnyNumber());
     EXPECT_CALL(visitor_, HasPendingHandshake()).Times(AnyNumber());
     EXPECT_CALL(visitor_, OnCanWrite()).Times(AnyNumber());
     EXPECT_CALL(visitor_, HasOpenDataStreams()).WillRepeatedly(Return(false));
@@ -1775,7 +1775,7 @@ TEST_P(QuicConnectionTest, OnCanWrite) {
                                      &TestConnection::SendStreamData3)),
       IgnoreResult(InvokeWithoutArgs(&connection_,
                                      &TestConnection::SendStreamData5))));
-  EXPECT_CALL(visitor_, HasPendingWrites()).WillOnce(Return(true));
+  EXPECT_CALL(visitor_, WillingAndAbleToWrite()).WillOnce(Return(true));
   EXPECT_CALL(*send_algorithm_,
               TimeUntilSend(_, _, _)).WillRepeatedly(
                   testing::Return(QuicTime::Delta::Zero()));