Adapt the linux about_memory page to better render on Android.

chrome/app/chromium_strings.grd

Index: chrome/app/chromium_strings.grd
diff --git a/chrome/app/chromium_strings.grd b/chrome/app/chromium_strings.grd
index 0d815a68dc3a33f8282a38e3953303fb4731e157..8adc314390ff5e51bcd7f8e98fd7941afd0e49ea 100644
--- a/chrome/app/chromium_strings.grd
+++ b/chrome/app/chromium_strings.grd
@@ -641,6 +641,22 @@ Chromium is unable to recover your settings.
          Chromium is no longer updating because your operating system is obsolete.
       </message>
 
+      <!-- about:memory -->
+      <if expr="not pp_ifdef('android')">
+        <message translateable="false" name="IDS_MEMORY_USAGE_SUMMARY_DESC" desc="Describes the browser summary table in the about memory page, which shows memory usage for Chromium and any other active browsers.">
+Summary of memory used by currently active browsers. For browsers which use multiple processes, memory reflects aggregate memory used across all browser processes.
+
+For Chromium, processes used to display diagnostics information (such as this "about:memory") are excluded.
+        </message>
+      </if>
+      <if expr="pp_ifdef('android')">
+        <message translateable="false" name="IDS_MEMORY_USAGE_SUMMARY_DESC" desc="Describes the browser summary table in the about memory page, which shows memory usage for Chromium.">
+Summary of memory used by Chromium. Since Chromium uses multiple processes, memory reflects aggregate memory used across all browser processes.
+
+For Chromium, processes used to display diagnostics information (such as this "about:memory") are excluded.
+        </message>
+      </if>
+
       <!-- About Chrome page -->
       <if expr="not pp_ifdef('chromeos')">
         <message name="IDS_UPGRADE_SUCCESSFUL" desc="Status label: Successfully upgraded Chromium">