cc: Implement overdraw feedback debugging feature.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index c81e986b6b45819c0c234c56b8c3034bab37d76f..f2d1f7a0a921ad59f27b22cf6f148ccc06fb26d7 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -5548,6 +5548,12 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_GL_COMPOSITED_TEXTURE_QUAD_BORDERS_DESCRIPTION" desc="Description of the 'Composited layer borders' lab.">
         Renders a border around GL composited texture quads to help debug and study overlay support.
       </message>
+      <message name="IDS_FLAGS_SHOW_OVERDRAW_FEEDBACK" desc="Name of the 'Overdraw feedback' lab.">
+        Show overdraw feedback
+      </message>
+      <message name="IDS_FLAGS_SHOW_OVERDRAW_FEEDBACK_DESCRIPTION" desc="Description of the 'Overdraw feedback' lab.">
+        Visualize overdraw by color-coding elements based on if they have other elements drawn underneath.
+      </message>
       <message name="IDS_FLAGS_DEBUG_SHORTCUTS_NAME" desc="Name of the 'Debugging keyboard shortcuts' lab.">
         Debugging keyboard shortcuts
       </message>
@@ -5974,6 +5980,12 @@ Keep your key file in a safe place. You will need it to create new versions of y
         <message name="IDS_FLAGS_UI_SLOW_ANIMATIONS_DESCRIPTION" desc="Description for the flag that enables slow UI animations.">
           Makes all UI animations slow.
         </message>
+        <message name="IDS_FLAGS_UI_PARTIAL_SWAP_NAME" desc="Name for the flag that sets partial swap behavior.">
+          Partial swap
+        </message>
+        <message name="IDS_FLAGS_UI_PARTIAL_SWAP_DESCRIPTION" desc="Description for the flag that sets partial swap behavior.">
+          Sets partial swap behavior.
+        </message>
         <message name="IDS_FLAGS_ASH_TEXT_FILTERING_IN_OVERVIEW_MODE_NAME" desc="Title for the flag for window filtering in overview mode by inputing text">
           Text filtering in Overview Mode
         </message>