Passing BackgroundColorSpan and UnderlineSpan from Clank to Blink.

content/browser/renderer_host/render_widget_host_view_mac.mm

 // Copyright (c) 2012 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 "content/browser/renderer_host/render_widget_host_view_mac.h"
 
 #import <objc/runtime.h>
 #include <QuartzCore/QuartzCore.h>
 
 #include "base/basictypes.h"
@@ skipping 262 matching lines @@
                               longestEffectiveRange:&range
                                             inRange:NSMakeRange(i, length - i)];
     if (NSNumber *style = [attrs objectForKey:NSUnderlineStyleAttributeName]) {
       blink::WebColor color = SK_ColorBLACK;
       if (NSColor *colorAttr =
           [attrs objectForKey:NSUnderlineColorAttributeName]) {
         color = WebColorFromNSColor(
             [colorAttr colorUsingColorSpaceName:NSDeviceRGBColorSpace]);
       }
       underlines->push_back(blink::WebCompositionUnderline(
-          range.location, NSMaxRange(range), color, [style intValue] > 1));
+          range.location, NSMaxRange(range), color, [style intValue] > 1,
+          SK_ColorTRANSPARENT));
     }
     i = range.location + range.length;
   }
 }
 
 // EnablePasswordInput() and DisablePasswordInput() are copied from
 // enableSecureTextInput() and disableSecureTextInput() functions in
 // third_party/WebKit/WebCore/platform/SecureTextInput.cpp
 // But we don't call EnableSecureEventInput() and DisableSecureEventInput()
 // here, because they are already called in webkit and they are system wide
@@ skipping 3371 matching lines @@
   selectedRange_ = newSelRange;
   markedText_ = base::SysNSStringToUTF16(im_text);
   hasMarkedText_ = (length > 0);
 
   underlines_.clear();
   if (isAttributedString) {
     ExtractUnderlines(string, &underlines_);
   } else {
     // Use a thin black underline by default.
     underlines_.push_back(
-        blink::WebCompositionUnderline(0, length, SK_ColorBLACK, false));
+        blink::WebCompositionUnderline(0, length, SK_ColorBLACK, false,
+                                       SK_ColorTRANSPARENT));
   }
 
   // If we are handling a key down event, then SetComposition() will be
   // called in keyEvent: method.
   // Input methods of Mac use setMarkedText calls with an empty text to cancel
   // an ongoing composition. So, we should check whether or not the given text
   // is empty to update the input method state. (Our input method backend can
   // automatically cancels an ongoing composition when we send an empty text.
   // So, it is OK to send an empty text to the renderer.)
   if (!handlingKeyDown_) {
@@ skipping 320 matching lines @@
 
 // "-webkit-app-region: drag | no-drag" is implemented on Mac by excluding
 // regions that are not draggable. (See ControlRegionView in
 // native_app_window_cocoa.mm). This requires the render host view to be
 // draggable by default.
 - (BOOL)mouseDownCanMoveWindow {
   return YES;
 }
 
 @end