Remove dependency from infobars component to the embedder

components/infobars/core/infobar.h

 // Copyright 2014 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.
 
 #ifndef COMPONENTS_INFOBARS_CORE_INFOBAR_H_
 #define COMPONENTS_INFOBARS_CORE_INFOBAR_H_
 
 #include <utility>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 22 matching lines @@
 //
 // Thus, InfoBarDelegate and InfoBar implementations can assume they share
 // lifetimes, and not NULL-check each other; but if one needs to reach back into
 // the owning InfoBarManager, it must check whether that's still possible.
 class InfoBar : public gfx::AnimationDelegate {
  public:
   // These are the types passed as Details for infobar-related notifications.
   typedef InfoBar AddedDetails;
   typedef std::pair<InfoBar*, bool> RemovedDetails;
 
-  // Platforms must define these.
-  static const int kDefaultBarTargetHeight;
-  static const int kSeparatorLineHeight;
-  static const int kDefaultArrowTargetHeight;
-  static const int kMaximumArrowTargetHeight;
+  // Those globals must be initialized by the embedder before doing calling
+  // any of the method of the component via Initialize() call.
+  static int gDefaultBarTargetHeight;
+  static int gSeparatorLineHeight;
+  static int gDefaultArrowTargetHeight;
+  static int gMaximumArrowTargetHeight;
   // The half-width (see comments on |arrow_half_width_| below) scales to its
   // default and maximum values proportionally to how the height scales to its.
-  static const int kDefaultArrowTargetHalfWidth;
-  static const int kMaximumArrowTargetHalfWidth;
+  static int gDefaultArrowTargetHalfWidth;
+  static int gMaximumArrowTargetHalfWidth;
 
   explicit InfoBar(scoped_ptr<InfoBarDelegate> delegate);
   ~InfoBar() override;
 
+  // Initializes the globals by the infobar component. Must be called by the
+  // embedder to provides its own value before making any call into the
+  // component.
+  static void Initialize(int defaultBarTargetHeight,
+                         int separatorLineHeight,
+                         int defaultArrowTargetHeight,
+                         int maximumArrowTargetHeight,
+                         int defaultArrowTargetHalfWidth,
+                         int maximumArrowTargetHalfWidth);
+
   static SkColor GetTopColor(InfoBarDelegate::Type infobar_type);
   static SkColor GetBottomColor(InfoBarDelegate::Type infobar_type);
 
   InfoBarManager* owner() { return owner_; }
   InfoBarDelegate* delegate() const { return delegate_.get(); }
   void set_container(InfoBarContainer* container) { container_ = container; }
 
   // Sets |owner_|.  This also calls StoreActiveEntryUniqueID() on |delegate_|.
   // This must only be called once as there's no way to extract an infobar from
   // its owner without deleting it, for reparenting in another tab.
@@ skipping 76 matching lines @@
   int arrow_half_width_;     // Includes only fill.
   int bar_height_;           // Includes both fill and bottom separator.
   int bar_target_height_;
 
   DISALLOW_COPY_AND_ASSIGN(InfoBar);
 };
 
 }  // namespace infobars
 
 #endif  // COMPONENTS_INFOBARS_CORE_INFOBAR_H_