Propogate the tab foreground, background change events to data use

chrome/browser/data_use_measurement/data_use_web_contents_observer.cc

Index: chrome/browser/data_use_measurement/data_use_web_contents_observer.cc
diff --git a/chrome/browser/data_use_measurement/data_use_web_contents_observer.cc b/chrome/browser/data_use_measurement/data_use_web_contents_observer.cc
index d1e35963da56f84e2c3b64a8066abe0deaa18856..8ff04655cc233f334117f3ae5489f179ab6068db 100644
--- a/chrome/browser/data_use_measurement/data_use_web_contents_observer.cc
+++ b/chrome/browser/data_use_measurement/data_use_web_contents_observer.cc
@@ -8,6 +8,7 @@
 #include "chrome/browser/data_use_measurement/chrome_data_use_ascriber_service_factory.h"
 #include "content/public/browser/navigation_handle.h"
 #include "content/public/browser/render_frame_host.h"
+#include "content/public/browser/render_process_host.h"

[RyanSturm, 2016/12/13 22:04:20]

is this header needed?

[Raj, 2016/12/14 23:00:50]

Removed.

 
 DEFINE_WEB_CONTENTS_USER_DATA_KEY(
     data_use_measurement::DataUseWebContentsObserver);
@@ -72,4 +73,18 @@ void DataUseWebContentsObserver::ReadyToCommitNavigation(
   service_->ReadyToCommitNavigation(navigation_handle);
 }
 
+void DataUseWebContentsObserver::WasShown() {
+  service_->WasShownOrHidden(web_contents()->GetMainFrame(), true);
+}
+
+void DataUseWebContentsObserver::WasHidden() {
+  service_->WasShownOrHidden(web_contents()->GetMainFrame(), false);
+}
+
+void DataUseWebContentsObserver::RenderFrameHostChanged(
+    content::RenderFrameHost* old_host,
+    content::RenderFrameHost* new_host) {
+  service_->RenderFrameHostChanged(old_host, new_host);
+}
+
 }  // namespace data_use_measurement