Reland "[chromeos/about:power] Collect cpuidle and cpufreq stats"

chrome/app/chromeos_strings.grdp

Index: chrome/app/chromeos_strings.grdp
diff --git a/chrome/app/chromeos_strings.grdp b/chrome/app/chromeos_strings.grdp
index b69c829990409571bfd07a68dc1324b290fb9eb2..4ef6ad5f9b95aec12b32a09e388ed91f4f966092 100644
--- a/chrome/app/chromeos_strings.grdp
+++ b/chrome/app/chromeos_strings.grdp
@@ -5021,27 +5021,54 @@ All users must sign out to continue.
   </message>
 
   <!-- About power UI display strings -->
-  <message name="IDS_ABOUT_POWER_TITLE" desc="Title of the page">
+  <message name="IDS_ABOUT_POWER_TITLE" desc="Title of the about:power page">
     Power
   </message>
-  <message name="IDS_ABOUT_POWER_RELOAD_BUTTON" desc="Text on the reload button">
+  <message name="IDS_ABOUT_POWER_SHOW_BUTTON" desc="Text on the 'Show' buttons of the about:power page">
+    Show
+  </message>
+  <message name="IDS_ABOUT_POWER_HIDE_BUTTON" desc="Text on the 'Hide' buttons of the about:power page">
+    Hide
+  </message>
+  <message name="IDS_ABOUT_POWER_RELOAD_BUTTON" desc="Text on the 'Reload' buttons of the about:power page ">
     Reload
   </message>
-  <message name="IDS_ABOUT_POWER_BATTERY_CHARGE_PERCENTAGE_HEADER" desc="Header of the battery charge plot">
+  <message name="IDS_ABOUT_POWER_BATTERY_CHARGE_SECTION_TITLE" desc="Title for the battery charge related plots on the about:power page">
+    Battery Charge
+  </message>
+  <message name="IDS_ABOUT_POWER_BATTERY_CHARGE_PERCENTAGE_HEADER" desc="Header of the battery charge plot on the about:power page">
     Battery Charge Percentage
   </message>
-  <message name="IDS_ABOUT_POWER_BATTERY_DISCHARGE_RATE_HEADER" desc="Header of the battery discharge rate plot">
-    Battery Discharge Rate in Watts
+  <message name="IDS_ABOUT_POWER_BATTERY_DISCHARGE_RATE_HEADER" desc="Header of the battery discharge rate plot on the about:power page">
+    Battery Discharge Rate in Watts (Negative value means battery is charging)
+  </message>
+  <message name="IDS_ABOUT_POWER_DISCHARGE_RATE_LEGEND_TEXT" desc="Text to be displayed for the discharge rate legend entry of the discharge rate plot on the about:power page">
+    Discharge Rate in Watts
+  </message>
+  <message name="IDS_ABOUT_POWER_CPU_IDLE_SECTION_TITLE" desc="Title for the CPU idle state data section on the about:power page">
+    Idle State Data
   </message>
-  <message name="IDS_ABOUT_POWER_NEGATIVE_DISCHARGE_RATE_INFO" desc="Describes what a negative discharge rate means">
-    Negative discharge rate means the battery is charging
+  <message name="IDS_ABOUT_POWER_CPU_IDLE_STATE_OCCUPANCY_PERCENTAGE" desc="Header for idle state plots on the about:power page">
+    Idle State Occupancy Percentage
   </message>
-  <message name="IDS_ABOUT_POWER_NOT_ENOUGH_DATA" desc="String to display when enough plot data is not available">
+  <message name="IDS_ABOUT_POWER_CPU_FREQ_SECTION_TITLE" desc="Title for the CPU frequency state data section on the about:power page">
+    Frequency State Data
+  </message>
+  <message name="IDS_ABOUT_POWER_CPU_FREQ_STATE_OCCUPANCY_PERCENTAGE" desc="Header for frequency state plots on the about:power page">
+    Frequency State Occupancy Percentage
+  </message>
+  <message name="IDS_ABOUT_POWER_NOT_ENOUGH_DATA" desc="String to display on the plots of the about:power page when enough plot data is not available">
     Not enough data available yet.
   </message>
-  <message name="IDS_ABOUT_POWER_SYSTEM_SUSPENDED" desc="String to display on plots for sleep duration">
+  <message name="IDS_ABOUT_POWER_SYSTEM_SUSPENDED" desc="String to display on the plots of the about:power page for sleep duration">
     Suspended
   </message>
+  <message name="IDS_ABOUT_POWER_INVALID" desc="String to display on the plots of the about:power page for invalid data">
+    Invalid
+  </message>
+  <message name="IDS_ABOUT_POWER_OFFLINE" desc="String to display on the plots of the about:power page for offline CPUs">
+    Offline
+  </message>
 
   <!-- Strings for the new-style OAuth-based enterprise enrollment page -->
   <message name="IDS_ENTERPRISE_DEVICE_REQUISITION_PROMPT_CANCEL" desc="Cancel button text in the device requisition poup.">