Remove top and bottom margins from TrayBubbleView

ui/compositor/layer.cc

 // 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 "ui/compositor/layer.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 277 matching lines @@
     return;
   // We need to de-reference the currently linked object so that no problem
   // arises if the mask layer gets deleted before this object.
   if (layer_mask_)
     layer_mask_->layer_mask_back_link_ = NULL;
   layer_mask_ = layer_mask;
   web_layer_->setMaskLayer(
       layer_mask ? layer_mask->web_layer() : NULL);
   // We need to reference the linked object so that it can properly break the
   // link to us when it gets deleted.
-  if (layer_mask)
+  if (layer_mask) {
     layer_mask->layer_mask_back_link_ = this;
+    layer_mask->OnDeviceScaleFactorChanged(device_scale_factor_);
+  }
 }
 
 void Layer::SetLayerFilters() {
   WebKit::WebFilterOperations filters;
   if (layer_saturation_) {
     filters.append(WebKit::WebFilterOperation::createSaturateFilter(
         layer_saturation_));
   }
   if (layer_grayscale_) {
     filters.append(WebKit::WebFilterOperation::createGrayscaleFilter(
@@ skipping 174 matching lines @@
   if (device_scale_factor_ == device_scale_factor)
     return;
   device_scale_factor_ = device_scale_factor;
   RecomputeTransform();
   RecomputeDrawsContentAndUVRect();
   SchedulePaint(gfx::Rect(bounds_.size()));
   if (delegate_)
     delegate_->OnDeviceScaleFactorChanged(device_scale_factor);
   for (size_t i = 0; i < children_.size(); ++i)
     children_[i]->OnDeviceScaleFactorChanged(device_scale_factor);
+  if (layer_mask_)
+    layer_mask_->OnDeviceScaleFactorChanged(device_scale_factor);
 }
 
 void Layer::paintContents(WebKit::WebCanvas* web_canvas,
                           const WebKit::WebRect& clip,
 #if WEBCONTENTLAYERCLIENT_HAS_CANPAINTLCDTEXT
                           bool can_paint_lcd_text,
 #endif  // WEBCONTENTLAYERCLIENT_HAS_CANPAINTLCDTEXT
                           WebKit::WebFloatRect& opaque) {
   TRACE_EVENT0("ui", "Layer::paintContents");
   scoped_ptr<gfx::Canvas> canvas(gfx::Canvas::CreateCanvasWithoutScaling(
@@ skipping 286 matching lines @@
     return;
   unsigned int color = 0xFF000000;
   color |= web_layer_is_accelerated_ ? 0x0000FF00 : 0x00FF0000;
   bool opaque = fills_bounds_opaquely_ && (GetCombinedOpacity() == 1.f);
   if (!opaque)
     color |= 0xFF;
   web_layer_->setDebugBorderColor(color);
 }
 
 }  // namespace ui