Get rid of the last view_messages.h include in chrome, other than tab_contents_views_mac.mm and r...

chrome/browser/tab_contents/thumbnail_generator_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/basictypes.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/history/top_sites.h"
 #include "chrome/browser/tab_contents/thumbnail_generator.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/test/base/testing_profile.h"
@@ skipping 76 matching lines @@
     // Process all pending tasks to avoid leaks.
     message_loop_.RunAllPending();
   }
 
  protected:
   // Indicates what bitmap should be sent with the paint message. _OTHER will
   // only be retrned by CheckFirstPixel if the pixel is none of the others.
   enum TransportType { TRANSPORT_BLACK, TRANSPORT_WHITE, TRANSPORT_OTHER };
 
   void SendPaint(TransportType type) {
-    ViewHostMsg_UpdateRect_Params params;
-    params.bitmap_rect = gfx::Rect(0, 0, kBitmapWidth, kBitmapHeight);
-    params.view_size = params.bitmap_rect.size();
-    params.copy_rects.push_back(params.bitmap_rect);
-    params.flags = 0;
-
     scoped_ptr<skia::PlatformCanvas> canvas(
         transport_dib_->GetPlatformCanvas(kBitmapWidth, kBitmapHeight));
     switch (type) {
       case TRANSPORT_BLACK:
         skia::GetTopDevice(*canvas)->accessBitmap(true).eraseARGB(
             0xFF, 0, 0, 0);
         break;
       case TRANSPORT_WHITE:
         skia::GetTopDevice(*canvas)->accessBitmap(true).eraseARGB(
             0xFF, 0xFF, 0xFF, 0xFF);
         break;
       case TRANSPORT_OTHER:
       default:
         NOTREACHED();
         break;
     }
 
-    params.bitmap = transport_dib_->id();
-
-    ViewHostMsg_UpdateRect msg(1, params);
-    widget_->OnMessageReceived(msg);
+    gfx::Rect rect(0, 0, kBitmapWidth, kBitmapHeight);
+    SimulateUpdateRect(widget_.get(), transport_dib_->id(), rect);
   }
 
   TransportType ClassifyFirstPixel(const SkBitmap& bitmap) {
     // Returns the color of the first pixel of the bitmap. The bitmap must be
     // non-empty.
     SkAutoLockPixels lock(bitmap);
     uint32 pixel = *bitmap.getAddr32(0, 0);
 
     if (SkGetPackedA32(pixel) != 0xFF)
       return TRANSPORT_OTHER;  // All values expect an opqaue alpha channel
@@ skipping 271 matching lines @@
   good_score.good_clipping = true;
   good_score.boring_score = 0.0;
   good_score.load_completed = true;
   top_sites->AddKnownURL(kGoodURL, good_score);
 
   // Should be false, as the existing thumbnail is good enough (i.e. don't
   // need to replace the existing thumbnail which is new and good).
   EXPECT_FALSE(ThumbnailGenerator::ShouldUpdateThumbnail(
       &profile, top_sites.get(), kGoodURL));
 }