Do not calculate composition bounds until IME requests.

content/browser/renderer_host/ime_adapter_android.cc

Index: content/browser/renderer_host/ime_adapter_android.cc
diff --git a/content/browser/renderer_host/ime_adapter_android.cc b/content/browser/renderer_host/ime_adapter_android.cc
index 92b3346747006bb3ccefa7a4477b55df70496d7a..284e29eb53e20377c220c9ec1b7a5e49937ad6b9 100644
--- a/content/browser/renderer_host/ime_adapter_android.cc
+++ b/content/browser/renderer_host/ime_adapter_android.cc
@@ -328,6 +328,13 @@ bool ImeAdapterAndroid::RequestTextInputStateUpdate(
   return true;
 }
 
+void ImeAdapterAndroid::RequestCursorUpdate(
+    JNIEnv* env, const base::android::JavaParamRef<jobject>& obj, int mode) {
+  RenderWidgetHostImpl* rwhi = GetRenderWidgetHostImpl();
+  if (rwhi)

[yosin_UTC9, 2016/07/06 02:02:01]

nit: better to use early return style

if (!rwhi)
  return;
rwhi->Send(...);

[Seigo Nonaka, 2016/07/06 03:25:56]

Done.

+    rwhi->Send(new InputMsg_RequestCursorUpdate(rwhi->GetRoutingID(), mode));
+}
+
 bool ImeAdapterAndroid::IsImeThreadEnabled(
     JNIEnv* env,
     const base::android::JavaParamRef<jobject>&) {