Implement the Instant extended API startMargin, endMargin, and rtl properties and the onmarginchang…

chrome/browser/instant/instant_controller.h

Index: chrome/browser/instant/instant_controller.h
diff --git a/chrome/browser/instant/instant_controller.h b/chrome/browser/instant/instant_controller.h
index 436f9866560268177df9731e72a553709fb0e405..239bb6018a19be4490b0cf57a8e1188ee15dbbb1 100644
--- a/chrome/browser/instant/instant_controller.h
+++ b/chrome/browser/instant/instant_controller.h
@@ -57,8 +57,11 @@ class InstantController {
               bool user_input_in_progress,
               bool omnibox_popup_is_open);
 
-  // Sets the bounds of the omnibox dropdown, in screen coordinates.
-  void SetOmniboxBounds(const gfx::Rect& bounds);
+  // Sets the bounds of the omnibox popup, in screen coordinates.
+  void SetPopupBounds(const gfx::Rect& bounds);
+
+  // Sets the widths of the start and end margins of the Instant page.
+  void SetMarginSize(int start, int end);
 
   // Send autocomplete results from |providers| to the preview page.
   void HandleAutocompleteResults(
@@ -176,7 +179,7 @@ class InstantController {
   // the given |height|.
   void Show(InstantShownReason reason, int height, InstantSizeUnits units);
 
-  // Send the omnibox dropdown bounds to the page.
+  // Send the omnibox popup bounds to the page.
   void SendBoundsToPage();
 
   // If |template_url| is a valid TemplateURL for use with Instant, fills in
@@ -222,11 +225,17 @@ class InstantController {
   // The search model mode for the active tab.
   chrome::search::Mode search_mode_;
 
-  // Current omnibox bounds.
-  gfx::Rect omnibox_bounds_;
+  // Current omnibox popup bounds.
+  gfx::Rect popup_bounds_;
+
+  // Last popup bounds passed to the page.
+  gfx::Rect last_popup_bounds_;
+
+  // Size of the start-edge omnibox text area margin.
+  int start_margin_;
 
-  // Last bounds passed to the page.
-  gfx::Rect last_omnibox_bounds_;
+  // Size of the end-edge omnibox text area margin.
+  int end_margin_;
 
   // Timer used to update the bounds of the omnibox.
   base::OneShotTimer<InstantController> update_bounds_timer_;