Fix overflow in allocation throughput calculation.

test/cctest/test-heap.cc

Index: test/cctest/test-heap.cc
diff --git a/test/cctest/test-heap.cc b/test/cctest/test-heap.cc
index deb9a4922183c7309f386c9181b55ee69392e3ab..c99019f89e8032d8457e915e468829c3cc8d3e62 100644
--- a/test/cctest/test-heap.cc
+++ b/test/cctest/test-heap.cc
@@ -5549,13 +5549,13 @@ TEST(NewSpaceAllocationThroughput2) {
   int time2 = 200;
   size_t counter2 = 2000;
   tracer->SampleAllocation(time2, counter2, 0);
-  size_t bytes = tracer->AllocatedBytesInLast(1000);
-  CHECK_EQ(10000, bytes);
+  size_t throughput = tracer->AllocationThroughputInBytesPerMillisecond(100);
+  CHECK_EQ((counter2 - counter1) / (time2 - time1), throughput);
   int time3 = 1000;
   size_t counter3 = 30000;
   tracer->SampleAllocation(time3, counter3, 0);
-  bytes = tracer->AllocatedBytesInLast(100);
-  CHECK_EQ((counter3 - counter1) * 100 / (time3 - time1), bytes);
+  throughput = tracer->AllocationThroughputInBytesPerMillisecond(100);
+  CHECK_EQ((counter3 - counter1) / (time3 - time1), throughput);
 }
 
 
@@ -5612,13 +5612,13 @@ TEST(OldGenerationAllocationThroughput) {
   int time2 = 200;
   size_t counter2 = 2000;
   tracer->SampleAllocation(time2, 0, counter2);
-  size_t bytes = tracer->AllocatedBytesInLast(1000);
-  CHECK_EQ(10000, bytes);
+  size_t throughput = tracer->AllocationThroughputInBytesPerMillisecond(100);
+  CHECK_EQ((counter2 - counter1) / (time2 - time1), throughput);
   int time3 = 1000;
   size_t counter3 = 30000;
   tracer->SampleAllocation(time3, 0, counter3);
-  bytes = tracer->AllocatedBytesInLast(100);
-  CHECK_EQ((counter3 - counter1) * 100 / (time3 - time1), bytes);
+  throughput = tracer->AllocationThroughputInBytesPerMillisecond(100);
+  CHECK_EQ((counter3 - counter1) / (time3 - time1), throughput);
 }
 
 
@@ -5634,11 +5634,11 @@ TEST(AllocationThroughput) {
   int time2 = 200;
   size_t counter2 = 2000;
   tracer->SampleAllocation(time2, counter2, counter2);
-  size_t bytes = tracer->AllocatedBytesInLast(1000);
-  CHECK_EQ(20000, bytes);
+  size_t throughput = tracer->AllocationThroughputInBytesPerMillisecond(100);
+  CHECK_EQ(2 * (counter2 - counter1) / (time2 - time1), throughput);
   int time3 = 1000;
   size_t counter3 = 30000;
   tracer->SampleAllocation(time3, counter3, counter3);
-  bytes = tracer->AllocatedBytesInLast(100);
-  CHECK_EQ(2 * (counter3 - counter1) * 100 / (time3 - time1), bytes);
+  throughput = tracer->AllocationThroughputInBytesPerMillisecond(100);
+  CHECK_EQ(2 * (counter3 - counter1) / (time3 - time1), throughput);
 }