Implement Input Method related WebPlugin interface for browser plugin

content/browser/browser_plugin/browser_plugin_guest.h

Index: content/browser/browser_plugin/browser_plugin_guest.h
diff --git a/content/browser/browser_plugin/browser_plugin_guest.h b/content/browser/browser_plugin/browser_plugin_guest.h
index b3d491801f68e195b2e3c7e0eb59c2005dee3578..46c95a40da8bed042ba1d12f9a05c679d37fe133 100644
--- a/content/browser/browser_plugin/browser_plugin_guest.h
+++ b/content/browser/browser_plugin/browser_plugin_guest.h
@@ -33,9 +33,12 @@
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/common/browser_plugin_permission_type.h"
+#include "third_party/WebKit/public/web/WebCompositionUnderline.h"
 #include "third_party/WebKit/public/web/WebDragOperation.h"
 #include "third_party/WebKit/public/web/WebDragStatus.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
+#include "ui/base/ime/text_input_mode.h"
+#include "ui/base/ime/text_input_type.h"
 #include "ui/gfx/rect.h"
 #include "ui/surface/transport_dib.h"
 
@@ -57,6 +60,10 @@ namespace blink {
 class WebInputEvent;
 }
 
+namespace gfx {
+class Range;
+}
+
 namespace content {
 
 class BrowserPluginHostFactory;
@@ -463,6 +470,27 @@ class CONTENT_EXPORT BrowserPluginGuest
       const BrowserPluginHostMsg_AutoSize_Params& auto_size_params,
       const BrowserPluginHostMsg_ResizeGuest_Params& resize_guest_params);
 
+  void OnTextInputTypeChanged(ui::TextInputType type,
+                              ui::TextInputMode input_mode,
+                              bool can_compose_inline);
+  void OnImeSetComposition(
+      int instance_id,
+      const std::string& text,
+      const std::vector<blink::WebCompositionUnderline>& underlines,
+      int selection_start,
+      int selection_end);
+  void OnImeConfirmComposition(
+      int instance_id,
+      const std::string& text,
+      bool keep_selection);
+  void OnExtendSelectionAndDelete(int instance_id, int before, int after);
+  // Overridden in tests.
+  virtual void OnImeCancelComposition();
+#if defined(OS_MACOSX) || defined(OS_WIN) || defined(USE_AURA)
+  void OnImeCompositionRangeChanged(
+      const gfx::Range& range,
+      const std::vector<gfx::Rect>& character_bounds);
+#endif
 
   // Message handlers for messages from guest.