Get surrounding text from webkit. This CL is for sharing code only.

content/common/view_messages.h

Index: content/common/view_messages.h
diff --git a/content/common/view_messages.h b/content/common/view_messages.h
index 395ff9e6508149e515668ea0a82ba6411e1209b0..cc954ebf197b43fd0d9f3e34baba3902487b509c 100644
--- a/content/common/view_messages.h
+++ b/content/common/view_messages.h
@@ -792,6 +792,27 @@ IPC_STRUCT_BEGIN(ViewMsg_New_Params)
   IPC_STRUCT_MEMBER(string16, frame_name)
 IPC_STRUCT_END()
 
+IPC_STRUCT_BEGIN(ViewHostMsg_ImeUpdateTextInputState_Params)
+  // text input type.
+  IPC_STRUCT_MEMBER(ui::TextInputType, text_input_type)
+
+  // can compose inline.
+  IPC_STRUCT_MEMBER(bool, can_compose_inline)
+
+  // caret rectangle.
+  IPC_STRUCT_MEMBER(gfx::Rect, caret_bounds)
+
+  // surrounding text.
+  IPC_STRUCT_MEMBER(string16, surrounding)
+
+  // curosr.
+  IPC_STRUCT_MEMBER(size_t, cursor)
+
+  // anchor.
+  IPC_STRUCT_MEMBER(size_t, anchor)
+IPC_STRUCT_END()
+
+
 // Messages sent from the browser to the renderer.
 
 // Used typically when recovering from a crash.  The new rendering process
@@ -1837,11 +1858,8 @@ IPC_SYNC_MESSAGE_ROUTED1_1(ViewHostMsg_GetRootWindowRect,
                            gfx::Rect /* Out: Window location */)
 
 // Required for updating text input state.
-IPC_MESSAGE_ROUTED3(ViewHostMsg_ImeUpdateTextInputState,
-                    ui::TextInputType, /* text_input_type */
-                    bool, /* can_compose_inline */
-                    gfx::Rect /* caret_rect */)
-
+IPC_MESSAGE_ROUTED1(ViewHostMsg_ImeUpdateTextInputState,
+                    ViewHostMsg_ImeUpdateTextInputState_Params)
 
 // Message sent when the IME text composition range changes.
 IPC_MESSAGE_ROUTED1(ViewHostMsg_ImeCompositionRangeChanged,