Do not consume Alt-Shift-Up event for IME switch.

chrome/browser/chromeos/input_method/mode_indicator_browsertest.cc

Index: chrome/browser/chromeos/input_method/mode_indicator_browsertest.cc
diff --git a/chrome/browser/chromeos/input_method/mode_indicator_browsertest.cc b/chrome/browser/chromeos/input_method/mode_indicator_browsertest.cc
index e047731b39a309b63b581d421b156aba0f436074..151a370e4b511d9fdd2649d024e2eca5fa307757 100644
--- a/chrome/browser/chromeos/input_method/mode_indicator_browsertest.cc
+++ b/chrome/browser/chromeos/input_method/mode_indicator_browsertest.cc
@@ -149,7 +149,7 @@ IN_PROC_BROWSER_TEST_F(ModeIndicatorBrowserTest, Bounds) {
   {
     ScopedModeIndicatorObserverForTesting observer;
     candidate_window->SetCursorBounds(cursor1_bounds, cursor1_bounds);
-    EXPECT_TRUE(imm->SwitchToNextInputMethod());
+    imm->SwitchToNextInputMethod();
     mi1_bounds = observer.last_bounds();
     // The bounds should be bigger than the inner size.
     EXPECT_LE(kInnerSize, mi1_bounds.width());
@@ -164,7 +164,7 @@ IN_PROC_BROWSER_TEST_F(ModeIndicatorBrowserTest, Bounds) {
   {
     ScopedModeIndicatorObserverForTesting observer;
     candidate_window->SetCursorBounds(cursor2_bounds, cursor2_bounds);
-    EXPECT_TRUE(imm->SwitchToNextInputMethod());
+    imm->SwitchToNextInputMethod();
     mi2_bounds = observer.last_bounds();
     EXPECT_TRUE(observer.is_displayed());
   }
@@ -186,7 +186,7 @@ IN_PROC_BROWSER_TEST_F(ModeIndicatorBrowserTest, Bounds) {
   {
     ScopedModeIndicatorObserverForTesting observer;
     candidate_window->SetCursorBounds(cursor3_bounds, cursor3_bounds);
-    EXPECT_TRUE(imm->SwitchToNextInputMethod());
+    imm->SwitchToNextInputMethod();
     mi3_bounds = observer.last_bounds();
     EXPECT_TRUE(observer.is_displayed());
     EXPECT_LT(mi3_bounds.bottom(), screen_bounds.bottom());
@@ -214,11 +214,11 @@ IN_PROC_BROWSER_TEST_F(ModeIndicatorBrowserTest, NumOfWidgets) {
   {
     ScopedModeIndicatorObserverForTesting observer;
 
-    EXPECT_TRUE(imm->SwitchToNextInputMethod());
+    imm->SwitchToNextInputMethod();
     EXPECT_EQ(1UL, observer.max_widget_list_size());
     const views::Widget* widget1 = observer.widget_list()[0];
 
-    EXPECT_TRUE(imm->SwitchToNextInputMethod());
+    imm->SwitchToNextInputMethod();
     EXPECT_EQ(2UL, observer.max_widget_list_size());
 
     // When a new mode indicator is displayed, the previous one should be