Chrome Empties: Add resources for Tab Grid empty state

This CL is part of the Chrome Empties project for Bling.

(Googlers only links)
Design Doc: https://docs.google.com/document/d/1JM2sKT4oghkol51U7_3xv9sfaB26C89CCGa2uwYBgsI/edit?usp=sharing
UX Specs with mocks: https://docs.google.com/presentation/d/1x1lSTOSQ1zkJu87SoigiUhX2f9oHACglR22yYg-lSHo/edit?usp=sharing

Bug: 1093575
Change-Id: I82b4914111f0b7a3f6050f8929b10bf7008e980b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2246623Reviewed-by: edchin <edchin@chromium.org>
Reviewed-by: Tommy Martino <tmartino@chromium.org>
Reviewed-by: Sebastien Lalancette <seblalancette@chromium.org>
Commit-Queue: Maxime Charland <mcharland@google.com>
Cr-Commit-Position: refs/heads/master@{#780357}

ios/chrome/browser/ui/tab_grid/BUILD.gn

@@ -94,6 +94,8 @@ source_set("tab_grid_ui") {
     "resources:new_tab_toolbar_button",
     "resources:new_tab_toolbar_button_incognito",
     "resources:page_control_assets",
+    "resources:tab_grid_incognito_tabs_empty",
+    "resources:tab_grid_regular_tabs_empty",
     "//base",
     "//ios/chrome/app/strings",
     "//ios/chrome/browser",

ios/chrome/browser/ui/tab_grid/resources/BUILD.gn

@@ -88,6 +88,20 @@ imageset("page_control_remote_tabs_selected") {
   ]
 }
 
+imageset("tab_grid_incognito_tabs_empty") {
+  sources = [
+    "tab_grid_incognito_tabs_empty.imageset/Contents.json",
+    "tab_grid_incognito_tabs_empty.imageset/tab_grid_incognito_tabs_empty.pdf",
+  ]
+}
+
+imageset("tab_grid_regular_tabs_empty") {
+  sources = [
+    "tab_grid_regular_tabs_empty.imageset/Contents.json",
+    "tab_grid_regular_tabs_empty.imageset/tab_grid_regular_tabs_empty.pdf",
+  ]
+}
+
 group("page_control_assets") {
   public_deps = [
     ":page_control_incognito_tabs",

ios/chrome/browser/ui/tab_grid/resources/tab_grid_incognito_tabs_empty.imageset/Contents.json

+{
+    "images": [
+        {
+            "idiom": "universal",
+            "filename": "tab_grid_incognito_tabs_empty.pdf"
+        }
+    ],
+    "info": {
+        "version": 1,
+        "author": "xcode"
+    },
+    "properties" : {
+      "preserves-vector-representation" : true
+    }
+}

ios/chrome/browser/ui/tab_grid/resources/tab_grid_regular_tabs_empty.imageset/Contents.json

+{
+    "images": [
+        {
+            "idiom": "universal",
+            "filename": "tab_grid_regular_tabs_empty.pdf"
+        }
+    ],
+    "info": {
+        "version": 1,
+        "author": "xcode"
+    },
+    "properties" : {
+      "preserves-vector-representation" : true
+    }
+}