Make theme setup a little faster by not blurring images for tab backgrounds....

chrome/browser/browser_theme_provider.cc

 // Copyright (c) 2009 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 "chrome/browser/browser_theme_provider.h"
 
 #include "base/file_util.h"
 #include "base/gfx/png_decoder.h"
 #include "base/gfx/png_encoder.h"
 #include "base/string_util.h"
@@ skipping 982 matching lines @@
       std::string resource_name;
       if (id == IDR_THEME_TAB_BACKGROUND) {
         base_id = IDR_THEME_FRAME;
         resource_name = "theme_tab_background";
       } else {
         base_id = IDR_THEME_FRAME_INCOGNITO;
         resource_name = "theme_tab_background_incognito";
       }
       std::map<int, SkBitmap*>::iterator it = image_cache_.find(base_id);
       if (it != image_cache_.end()) {
-        SkBitmap* frame = it->second;
-        int blur_amount = HasCustomImage(id) ? 1 : 2;
-        SkBitmap blurred =
-          skia::ImageOperations::CreateBlurredBitmap(*frame, blur_amount);
-        SkBitmap* bg_tab = new SkBitmap(TintBitmap(blurred,
+        SkBitmap* bg_tab = new SkBitmap(TintBitmap(*(it->second),
                                                    TINT_BACKGROUND_TAB));
 
         // If they've provided a custom image, overlay it.
         if (HasCustomImage(id)) {
           SkBitmap* overlay = LoadThemeBitmap(id);
           if (overlay) {
             SkCanvas canvas(*bg_tab);
             for (int x = 0; x < bg_tab->width(); x += overlay->width())
               canvas.drawBitmap(*overlay, static_cast<SkScalar>(x), 0, NULL);
           }
@@ skipping 165 matching lines @@
   // the image_cache_, and have therefore all been deleted in the lines above.
   // TODO(mirandac): make memory management clearer here.
   image_save_cache_.clear();
 }
 
 #if defined(TOOLKIT_VIEWS)
 void BrowserThemeProvider::FreePlatformCaches() {
   // Views (Skia) has no platform image cache to clear.
 }
 #endif