Adding help links to font size and display settings screens.

bug: 33110518
Change-Id: I5b75adc493ed0ab16a2dd653554af7a7c6e137ad

res/values/strings.xml

@@ -6032,6 +6032,10 @@
     <string name="help_url_manage_storage" translatable="false"></string>
     <!-- Help URL, Android is upgrading [DO NOT TRANSLATE] -->
     <string name="help_url_upgrading" translatable="false"></string>
+    <!-- Help URL, Font size [DO NOT TRANSLATE] -->
+    <string name="help_url_font_size" translatable="false"></string>
+    <!-- Help URL, Display size [DO NOT TRANSLATE] -->
+    <string name="help_url_display_size" translatable="false"></string>
 
     <!-- User account title [CHAR LIMIT=30] -->
     <string name="user_account_title">Account for content</string>

src/com/android/settings/accessibility/ToggleFontSizePreferenceFragment.java

@@ -72,6 +72,11 @@ public class ToggleFontSizePreferenceFragment extends PreviewSeekBarPreferenceFr
         Settings.System.putFloat(resolver, Settings.System.FONT_SCALE, mValues[mCurrentIndex]);
     }
 
+    @Override
+    public int getHelpResource() {
+        return R.string.help_url_font_size;
+    }
+
     @Override
     public int getMetricsCategory() {
         return MetricsEvent.ACCESSIBILITY_FONT_SIZE;

src/com/android/settings/display/ScreenZoomSettings.java

@@ -93,6 +93,11 @@ public class ScreenZoomSettings extends PreviewSeekBarPreferenceFragment impleme
         }
     }
 
+    @Override
+    public int getHelpResource() {
+        return R.string.help_url_display_size;
+    }
+
     @Override
     public int getMetricsCategory() {
         return MetricsEvent.DISPLAY_SCREEN_ZOOM;