Fix shared build by adding CONTENT_EXPORT.

content/browser/accessibility/browser_accessibility_win.h

Index: content/browser/accessibility/browser_accessibility_win.h
===================================================================
--- content/browser/accessibility/browser_accessibility_win.h	(revision 112885)
+++ content/browser/accessibility/browser_accessibility_win.h	(working copy)
@@ -77,7 +77,7 @@
   // Represents a non-static text node in IAccessibleHypertext. This character
   // is embedded in the response to IAccessibleText::get_text, indicating the
   // position where a non-static text child object appears.
-  static const char16 kEmbeddedCharacter[];
+  CONTENT_EXPORT static const char16 kEmbeddedCharacter[];
 
   CONTENT_EXPORT BrowserAccessibilityWin();
 
@@ -87,7 +87,7 @@
   // BrowserAccessibility methods.
   //
   CONTENT_EXPORT virtual void PreInitialize();
-CONTENT_EXPORT virtual void PostInitialize();
+  CONTENT_EXPORT virtual void PostInitialize();
   CONTENT_EXPORT virtual void NativeAddReference();
   CONTENT_EXPORT virtual void NativeReleaseReference();