Fixed IAccessibleText::TextAtOffset with IA2_TEXT_BOUNDARY_WORD to return text that spans from the …

content/browser/accessibility/browser_accessibility.h

 // 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.
 
 #ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_
 
 #include <map>
 #include <utility>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_split.h"
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/web/WebAXEnums.h"
 #include "ui/accessibility/ax_node.h"
 #include "ui/accessibility/ax_node_data.h"
 
 #if defined(OS_MACOSX) && __OBJC__
 @class BrowserAccessibilityCocoa;
 #endif
 
+namespace ui {
+enum TextBoundaryDirection;
+}
+
 namespace content {
 class BrowserAccessibilityManager;
 #if defined(OS_WIN)
 class BrowserAccessibilityWin;
 #endif
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 // BrowserAccessibility
 //
@@ skipping 69 matching lines @@
 
   // Returns the bounds of the given range in coordinates relative to the
   // top-left corner of the overall web area. Only valid when the
   // role is WebAXRoleStaticText.
   gfx::Rect GetLocalBoundsForRange(int start, int len) const;
 
   // Same as GetLocalBoundsForRange, in screen coordinates. Only valid when
   // the role is WebAXRoleStaticText.
   gfx::Rect GetGlobalBoundsForRange(int start, int len) const;
 
+  // Searches in the given text and from the given offset until the start of
+  // the next or previous word is found and returns its position.
+  int GetWordStartBoundary(
+      int start, ui::TextBoundaryDirection direction) const;
+
   // Returns the deepest descendant that contains the specified point
   // (in global screen coordinates).
   BrowserAccessibility* BrowserAccessibilityForPoint(const gfx::Point& point);
 
   // Marks this object for deletion, releases our reference to it, and
   // nulls out the pointer to the underlying AXNode.  May not delete
   // the object immediately due to reference counting.
   //
   // Reference counting is used on some platforms because the
   // operating system may hold onto a reference to a BrowserAccessibility
@@ skipping 147 matching lines @@
   // its nearest scrollable ancestor) to local bounds (which are relative
   // to the top of the web accessibility tree).
   gfx::Rect ElementBoundsToLocalBounds(gfx::Rect bounds) const;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibility);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_