Use process/control messages (instead of RVH messages) for layout tests.

third_party/WebKit/LayoutTests/platform/win/paint/invalidation/video-paint-invalidation-expected.txt

Index: third_party/WebKit/LayoutTests/platform/win/paint/invalidation/video-paint-invalidation-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/win/paint/invalidation/video-paint-invalidation-expected.txt b/third_party/WebKit/LayoutTests/platform/win/paint/invalidation/video-paint-invalidation-expected.txt
index 55411d426126cb2cb8d6a2d1d38d91d8253adfb5..5005d2b1e380dc4a498156600bc68037134b2ade 100644
--- a/third_party/WebKit/LayoutTests/platform/win/paint/invalidation/video-paint-invalidation-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/win/paint/invalidation/video-paint-invalidation-expected.txt
@@ -1,24 +1,30 @@
 {
+  "name": "Content Root Layer",
   "bounds": [800, 600],
   "children": [
     {
+      "name": "LayoutView #document",
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "children": [
         {
+          "name": "LayoutVideo VIDEO id='video'",
           "position": [8, 8],
           "bounds": [320, 240]
         },
         {
+          "name": "Squashing Containment Layer",
           "shouldFlattenTransform": false,
           "children": [
             {
+              "name": "LayoutFlexibleBox (relative positioned) DIV",
               "position": [8, 8],
               "bounds": [320, 240],
               "drawsContent": true
             },
             {
+              "name": "Squashing Layer (first squashed layer: LayoutFlexibleBox (relative positioned) DIV)",
               "position": [8, 8],
               "bounds": [320, 240],
               "drawsContent": true,
@@ -35,12 +41,12 @@
                 },
                 {
                   "object": "LayoutBlockFlow DIV id='thumb'",
-                  "rect": [159, 208, 36, 32],
+                  "rect": [159, 200, 36, 48],
                   "reason": "full"
                 },
                 {
                   "object": "LayoutBlockFlow DIV id='thumb'",
-                  "rect": [90, 208, 36, 32],
+                  "rect": [90, 200, 36, 48],
                   "reason": "full"
                 },
                 {
@@ -60,25 +66,13 @@
                 },
                 {
                   "object": "LayoutBlockFlow (anonymous)",
-                  "rect": [32, 208, 24, 23],
-                  "reason": "invalidate paint rectangle"
+                  "rect": [32, 208, 24, 32],
+                  "reason": "forced by layout"
                 },
                 {
                   "object": "LayoutText #text",
                   "rect": [32, 216, 24, 15],
                   "reason": "full"
-                },
-                {
-                  "object": "InlineTextBox ''",
-                  "reason": "full"
-                },
-                {
-                  "object": "InlineTextBox '0:00'",
-                  "reason": "full"
-                },
-                {
-                  "object": "RootInlineBox",
-                  "reason": "full"
                 }
               ]
             }
@@ -86,6 +80,52 @@
         }
       ]
     }
+  ],
+  "objectPaintInvalidations": [
+    {
+      "object": "LayoutVideo VIDEO id='video'",
+      "reason": "full"
+    },
+    {
+      "object": "LayoutButton INPUT",
+      "reason": "full"
+    },
+    {
+      "object": "LayoutBlockFlow (anonymous)",
+      "reason": "forced by layout"
+    },
+    {
+      "object": "RootInlineBox",
+      "reason": "forced by layout"
+    },
+    {
+      "object": "LayoutText #text",
+      "reason": "full"
+    },
+    {
+      "object": "InlineTextBox '0:00'",
+      "reason": "full"
+    },
+    {
+      "object": "LayoutSlider INPUT",
+      "reason": "full"
+    },
+    {
+      "object": "LayoutFlexibleBox DIV",
+      "reason": "forced by layout"
+    },
+    {
+      "object": "LayoutBlockFlow DIV id='thumb'",
+      "reason": "full"
+    },
+    {
+      "object": "LayoutButton INPUT",
+      "reason": "full"
+    },
+    {
+      "object": "LayoutSlider INPUT",
+      "reason": "full"
+    }
   ]
 }