[chromeos] Add a battery discharge rate plot to about:power page.

chrome/browser/ui/webui/chromeos/power_ui.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/chromeos/power_ui.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/compiler_specific.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 46 matching lines @@
   const std::deque<PowerDataCollector::PowerSupplySnapshot>& power_supply =
       PowerDataCollector::Get()->power_supply_data();
   base::ListValue data;
 
   for (unsigned int i = 0; i < power_supply.size(); ++i) {
     const PowerDataCollector::PowerSupplySnapshot& snapshot = power_supply[i];
     base::Time time = base::Time::Now() -
         (base::TimeTicks::Now() - snapshot.time);
     scoped_ptr<base::DictionaryValue> element(new base::DictionaryValue);
     element->SetDouble("battery_percent", snapshot.battery_percent);
+    element->SetDouble("battery_discharge_rate",
+                       snapshot.battery_discharge_rate);
     element->SetBoolean("external_power", snapshot.external_power);
     element->SetDouble("time", time.ToJsTime());
 
     data.Append(element.release());
   }
 
   web_ui()->CallJavascriptFunction(kOnRequestBatteryChargeDataFunction, data);
 }
 
 }  // namespace
 
 PowerUI::PowerUI(content::WebUI* web_ui) : content::WebUIController(web_ui) {
   web_ui->AddMessageHandler(new PowerMessageHandler());
 
   content::WebUIDataSource* html =
       content::WebUIDataSource::Create(chrome::kChromeUIPowerHost);
   html->SetUseJsonJSFormatV2();
 
   html->AddLocalizedString("titleText", IDS_ABOUT_POWER_TITLE);
   html->AddLocalizedString("reloadButton", IDS_ABOUT_POWER_RELOAD_BUTTON);
-  html->AddLocalizedString("batteryChargeHeader",
-                           IDS_ABOUT_POWER_BATTERY_CHARGE_HEADER);
+  html->AddLocalizedString("batteryChargePercentageHeader",
+                           IDS_ABOUT_POWER_BATTERY_CHARGE_PERCENTAGE_HEADER);
+  html->AddLocalizedString("batteryDischargeRateHeader",
+                           IDS_ABOUT_POWER_BATTERY_DISCHARGE_RATE_HEADER);
+  html->AddLocalizedString("negativeDischargeRateInfo",
+                           IDS_ABOUT_POWER_NEGATIVE_DISCHARGE_RATE_INFO);
   html->AddLocalizedString("notEnoughDataAvailableYet",
                            IDS_ABOUT_POWER_NOT_ENOUGH_DATA);
   html->AddLocalizedString("timeAndPlotDataMismatch",
                            IDS_ABOUT_POWER_TIME_AND_PLOT_DATA_MISMATCH);
   html->SetJsonPath(kStringsJsFile);
 
   html->AddResourcePath("power.css", IDR_ABOUT_POWER_CSS);
   html->AddResourcePath("power.js", IDR_ABOUT_POWER_JS);
   html->SetDefaultResource(IDR_ABOUT_POWER_HTML);
 
   Profile* profile = Profile::FromWebUI(web_ui);
   content::WebUIDataSource::Add(profile, html);
 }
 
 PowerUI::~PowerUI() {
 }
 
 }  // namespace chromeos