Remove gpu side LatencyInfo merging

content/common/gpu/gpu_command_buffer_stub.cc

Index: content/common/gpu/gpu_command_buffer_stub.cc
diff --git a/content/common/gpu/gpu_command_buffer_stub.cc b/content/common/gpu/gpu_command_buffer_stub.cc
index 44eaf90cc85fb3634f118576f716f868d6d02ccf..3a134822b7e5f9b2bc3482b470a31f915193c34e 100644
--- a/content/common/gpu/gpu_command_buffer_stub.cc
+++ b/content/common/gpu/gpu_command_buffer_stub.cc
@@ -100,6 +100,7 @@ const int64 kHandleMoreWorkPeriodBusyMs = 1;
 // Prevents idle work from being starved.
 const int64 kMaxTimeSinceIdleMs = 10;
 
+const unsigned int kMaxLatencyInfoNumber = 100;
 }  // namespace
 
 GpuCommandBufferStub::GpuCommandBufferStub(
@@ -567,7 +568,12 @@ void GpuCommandBufferStub::OnInitialize(
 }
 
 void GpuCommandBufferStub::OnSetLatencyInfo(
-    const ui::LatencyInfo& latency_info) {
+    const std::vector<ui::LatencyInfo>& latency_info) {
+  if (latency_info.size() > kMaxLatencyInfoNumber) {
+    LOG(ERROR) << "GpuCommandBufferStub::OnSetLatencyInfo LatencyInfo"
+               << " size " << latency_info.size() << " is too big.";
+    return;
+  }
   if (!latency_info_callback_.is_null())
     latency_info_callback_.Run(latency_info);
 }