Add an IPC method for Blink to call RapporService::RecordSample()

content/renderer/renderer_blink_platform_impl.cc

Index: content/renderer/renderer_blink_platform_impl.cc
diff --git a/content/renderer/renderer_blink_platform_impl.cc b/content/renderer/renderer_blink_platform_impl.cc
index 2ac75e6a7b8d357af2e1b661b8cc4eac144cfff2..3d341b864338c21d3f78dc0d26e96db1ca3d8605 100644
--- a/content/renderer/renderer_blink_platform_impl.cc
+++ b/content/renderer/renderer_blink_platform_impl.cc
@@ -1009,6 +1009,13 @@ blink::WebString RendererBlinkPlatformImpl::convertIDNToUnicode(
 
 //------------------------------------------------------------------------------
 
+void RendererBlinkPlatformImpl::recordRappor(
+    const char* metric, const blink::WebString& sample) {
+  RenderThreadImpl::current()->RecordRappor(metric, sample.utf8());
+}
+
+//------------------------------------------------------------------------------
+
 // static
 void RendererBlinkPlatformImpl::SetMockDeviceLightDataForTesting(double data) {
   g_test_device_light_data = data;