Add daily quota for precache

components/precache/core/precache_session_table_unittest.cc

Index: components/precache/core/precache_session_table_unittest.cc
diff --git a/components/precache/core/precache_session_table_unittest.cc b/components/precache/core/precache_session_table_unittest.cc
index a354032a5574613e459d4fab2e024c2533b4b938..313ce40f1fceeb2b2c9ebde50206d51ffd9b7840 100644
--- a/components/precache/core/precache_session_table_unittest.cc
+++ b/components/precache/core/precache_session_table_unittest.cc
@@ -7,6 +7,7 @@
 #include "base/compiler_specific.h"
 #include "base/time/time.h"
 #include "components/precache/core/precache_session_table.h"
+#include "components/precache/core/proto/quota.pb.h"
 #include "components/precache/core/proto/unfinished_work.pb.h"
 #include "sql/connection.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -153,6 +154,27 @@ TEST_F(PrecacheSessionTableTest, SaveDeleteGet) {
   EXPECT_EQ(0, unfinished_work2->top_host_size());
 }
 
+TEST_F(PrecacheSessionTableTest, SaveAndGetQuota) {
+  // Initial quota, should have expired.
+  EXPECT_LT(base::Time::FromInternalValue(
+                precache_session_table_->GetQuota().start_time()),
+            base::Time::Now());
+
+  PrecacheQuota quota;
+  quota.set_start_time(base::Time::Now().ToInternalValue());
+  quota.set_expiry_hours(1);
+  quota.set_remaining(1000U);
+
+  PrecacheQuota expected_quota = quota;
+  precache_session_table_->SaveQuota(quota);
+  EXPECT_EQ(expected_quota.start_time(),
+            precache_session_table_->GetQuota().start_time());
+  EXPECT_EQ(expected_quota.expiry_hours(),
+            precache_session_table_->GetQuota().expiry_hours());
+  EXPECT_EQ(expected_quota.remaining(),
+            precache_session_table_->GetQuota().remaining());
+}
+
 }  // namespace
 
 }  // namespace precache