Move gfx::ElideText functionality to RenderText.

ui/gfx/render_text.h

Index: ui/gfx/render_text.h
diff --git a/ui/gfx/render_text.h b/ui/gfx/render_text.h
index 3c87440eddd7f4da2852a61348607c0b348abc70..414d8f9af9317693d94dc4227e59ad268c44b582 100644
--- a/ui/gfx/render_text.h
+++ b/ui/gfx/render_text.h
@@ -28,7 +28,6 @@
 #include "ui/gfx/shadow_value.h"
 #include "ui/gfx/size_f.h"
 #include "ui/gfx/text_constants.h"
-#include "ui/gfx/text_elider.h"
 #include "ui/gfx/vector2d.h"
 
 class SkCanvas;
@@ -254,11 +253,12 @@ class GFX_EXPORT RenderText {
   // WARNING: Only use this for system limits, it lacks complex text support.
   void set_truncate_length(size_t length) { truncate_length_ = length; }
 
-  // Elides the text to fit in |display_rect| according to the specified
-  // |elide_behavior|. |ELIDE_MIDDLE| is not supported. If a truncate length and
-  // an elide mode are specified, the shorter of the two will be applicable.
+  // The layout text will be elided to fit |display_rect| using this behavior.
+  // The layout text may be shortened further by the truncate length.
   void SetElideBehavior(ElideBehavior elide_behavior);
 
+  const base::string16& layout_text() const { return layout_text_; }
+
   const Rect& display_rect() const { return display_rect_; }
   void SetDisplayRect(const Rect& r);
 
@@ -355,7 +355,7 @@ class GFX_EXPORT RenderText {
 
   // Returns the width of the content (which is the wrapped width in multiline
   // mode). Reserves room for the cursor if |cursor_enabled_| is true.
-  int GetContentWidth();
+  float GetContentWidth();
 
   // Returns the common baseline of the text. The return value is the vertical
   // offset from the top of |display_rect_| to the text baseline, in pixels.
@@ -580,9 +580,13 @@ class GFX_EXPORT RenderText {
   // Updates |layout_text_| if the text is obscured or truncated.
   void UpdateLayoutText();
 
-  // Elides |text| to fit in the |display_rect_| with given |elide_behavior_|.
-  // See ElideText in ui/gfx/text_elider.cc for reference.
-  base::string16 ElideText(const base::string16& text);
+  // Elides |text| as needed to fit in the |available_width| using |behavior|.
+  base::string16 Elide(const base::string16& text,
+                       float available_width,
+                       ElideBehavior behavior);
+
+  // Elides |email| as needed to fit the |available_width|.
+  base::string16 ElideEmail(const base::string16& email, float available_width);
 
   // Update the cached bounds and display offset to ensure that the current
   // cursor is within the visible display area.