Plumb gesture source value through Blink.

content/renderer/input/input_handler_proxy_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/input/input_handler_proxy.h"
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/trees/swap_promise_monitor.h"
 #include "content/common/input/did_overscroll_params.h"
@@ skipping 243 matching lines @@
 
     if (install_synchronous_handler_) {
       EXPECT_CALL(mock_input_handler_,
                   RequestUpdateForSynchronousInputHandler())
           .Times(1);
       input_handler_->SetOnlySynchronouslyAnimateRootFlings(
           &mock_synchronous_input_handler_);
     }
 
     mock_input_handler_.set_is_scrolling_root(synchronous_root_scroll_);
+
+    // Set a default device so tests don't always have to set this.
+    gesture_.sourceDevice = blink::WebGestureDeviceTouchpad;
   }
 
   ~InputHandlerProxyTest() {
     input_handler_.reset();
   }
 
 // This is defined as a macro so the line numbers can be traced back to the
 // correct spot when it fails.
 #define EXPECT_SET_NEEDS_ANIMATE_INPUT(times)                                \
   do {                                                                       \
@@ skipping 2142 matching lines @@
   testing::Mock::VerifyAndClearExpectations(&mock_client);
   testing::Mock::VerifyAndClearExpectations(&mock_synchronous_input_handler);
 }
 
 INSTANTIATE_TEST_CASE_P(AnimateInput,
                         InputHandlerProxyTest,
                         testing::ValuesIn(test_types));
 
 } // namespace
 } // namespace content