[Instant Start] Add a large Feed placeholder.

Bug: 1111824
Change-Id: I1b95c1c1c9f1b823e9b077cc9937d0a01f302f1b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2332317
Commit-Queue: Hao Dong <spdonghao@chromium.org>
Reviewed-by: Xi Han <hanxi@chromium.org>
Reviewed-by: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#798279}

chrome/android/features/start_surface/internal/BUILD.gn

@@ -27,7 +27,6 @@ android_resources("java_resources") {
     "java/res/drawable-xxhdpi/ic_home.png",
     "java/res/drawable-xxxhdpi/ic_explore.png",
     "java/res/drawable-xxxhdpi/ic_home.png",
-    "java/res/drawable/feed_loading_image_placeholder.xml",
     "java/res/drawable/hairline_border_card_background_light.xml",
     "java/res/layout/feed_loading_layout.xml",
     "java/res/layout/ss_bottom_bar_layout.xml",

chrome/android/features/start_surface/internal/java/res/drawable/feed_loading_image_placeholder.xml

-<?xml version="1.0" encoding="utf-8"?>
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item
-        android:id="@+id/image_placeholder"
-        android:top="15dp"
-        android:right="15dp"
-        android:left="0dp"
-        android:bottom="72dp">
-        <shape
-            android:shape="rectangle"
-            android:gravity="top|left">
-            <solid android:color="@color/feed_placeholder_color"/>
-            <corners android:radius="8dp" />
-            <size
-                android:width="92dp"
-                android:height="92dp"/>
-        </shape>
-    </item>
-
-    <item
-        android:height="48dp"
-        android:width="48dp"
-        android:gravity="bottom|right">
-        <bitmap android:src="@drawable/ic_more_vert_24dp"
-            android:gravity="center" />
-    </item>
-</layer-list>
\ No newline at end of file

chrome/android/features/start_surface/internal/java/res/drawable/hairline_border_card_background_light.xml

@@ -7,6 +7,6 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="rectangle" >
     <solid android:color="@color/default_bg_color" />
-    <stroke android:width="1dp" android:color="@color/data_reduction_chart_background_color"/>
+    <stroke android:width="1dp" android:color="@color/feed_placeholder_color"/>
     <corners android:radius="@dimen/default_rounded_corner_radius" />
 </shape>

chrome/android/features/start_surface/internal/java/res/values/colors.xml

@@ -4,5 +4,5 @@
      found in the LICENSE file. -->
 
 <resources>
-    <color name="feed_placeholder_color">@color/hairline_stroke_color_light</color>
+    <color name="feed_placeholder_color">@color/default_bg_color_secondary_light</color>
 </resources>

chrome/android/features/start_surface/internal/javatests/src/org/chromium/chrome/features/start_surface/InstantStartTest.java

@@ -665,7 +665,7 @@ public class InstantStartTest {
         ViewUtils.onViewWaiting(AllOf.allOf(withId(R.id.single_tab_view), isDisplayed()));
         ChromeRenderTestRule.sanitize(surface);
         // TODO(crbug.com/1065314): fix favicon.
-        mRenderTestRule.render(surface, "singlePane_singleTab_noMV");
+        mRenderTestRule.render(surface, "singlePane_singleTab_noMV2");
 
         // Initializes native.
         startAndWaitNativeInitialization();