Changes parameters used by IME code to fix several issues caused by Japanese IMEs.

Recent Japanese IMEs (ATOK2008 and MSIME 2007) display a suggestion window (a window which contains suggestions) above a composition string. To fix this issue, we do not only send the lower-left corner of a composition string but also send its upper-left corner and its upper-right corner. So, this change changes IPC parameters used by IME from a tuple of integers to gfx::Rect.
Also, this change fixes cursor positions for Japanese IMEs.

BUG=2770 "IME: Candidate window of Japanese IME follows the end of composition"
BUG=2771 "ATOK 2008 IME pop-ups are displayed below the main Chrome window."
BUG=2775 "IME: Caret is always displayed at the last of IME composition."
Review URL: http://codereview.chromium.org/7385

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@4872 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 9 insertions, 6 deletions

diff --git a/webkit/glue/webwidget_impl.cc b/webkit/glue/webwidget_impl.cc
index 1ff4269..7e7a218 100644
--- a/webkit/glue/webwidget_impl.cc
+++ b/webkit/glue/webwidget_impl.cc
@@ -185,14 +185,17 @@ void WebWidgetImpl::MouseCaptureLost() {
 void WebWidgetImpl::SetFocus(bool enable) {
 }
 
-void WebWidgetImpl::ImeSetComposition(int string_type, int cursor_position,
-                                      int target_start, int target_end,
-                                      int string_length,
-                                      const wchar_t *string_data) {
+bool WebWidgetImpl::ImeSetComposition(int string_type,
+                                      int cursor_position,
+                                      int target_start,
+                                      int target_end,
+                                      const std::wstring& ime_string) {
+  return false;
 }
 
-bool WebWidgetImpl::ImeUpdateStatus(bool* enable_ime, const void** id,
-                                    int* x, int* y) {
+bool WebWidgetImpl::ImeUpdateStatus(bool* enable_ime,
+                                    const void** node,
+                                    gfx::Rect* caret_rect) {
   return false;
 }