On windows, send audio hardware info with speech input requests if user consented.

This may help identify quality issues.

BUG=61677
TEST=none

Review URL: http://codereview.chromium.org/4724001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@66749 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 49 insertions, 0 deletions

diff --git a/chrome/installer/util/wmi.cc b/chrome/installer/util/wmi.cc
index fca2076..e873277 100644
--- a/chrome/installer/util/wmi.cc
+++ b/chrome/installer/util/wmi.cc
@@ -9,6 +9,7 @@
 #include "base/basictypes.h"
 #include "base/win/scoped_bstr.h"
 #include "base/win/scoped_comptr.h"
+#include "base/win/scoped_variant.h"
 
 #pragma comment(lib, "wbemuuid.lib")
 
@@ -150,4 +151,43 @@ bool WMIProcess::Launch(const std::wstring& command_line, int* process_id) {
   return true;
 }
 
+string16 WMIComputerSystem::GetModel() {
+  base::win::ScopedComPtr<IWbemServices> services;
+  if (!WMI::CreateLocalConnection(true, services.Receive()))
+    return string16();
+
+  base::win::ScopedBstr query_language(L"WQL");
+  base::win::ScopedBstr query(L"SELECT * FROM Win32_ComputerSystem");
+  base::win::ScopedComPtr<IEnumWbemClassObject> enumerator;
+  HRESULT hr = services->ExecQuery(
+      query_language, query,
+      WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, NULL,
+      enumerator.Receive());
+  if (FAILED(hr) || !enumerator)
+    return string16();
+
+  base::win::ScopedComPtr<IWbemClassObject> class_object;
+  ULONG items_returned = 0;
+  hr = enumerator->Next(WBEM_INFINITE, 1,  class_object.Receive(),
+                        &items_returned);
+  if (!items_returned)
+    return string16();
+
+  base::win::ScopedVariant manufacturer;
+  class_object->Get(L"Manufacturer", 0, manufacturer.Receive(), 0, 0);
+  base::win::ScopedVariant model;
+  class_object->Get(L"Model", 0, model.Receive(), 0, 0);
+
+  string16 model_string;
+  if (manufacturer.type() == VT_BSTR) {
+    model_string = V_BSTR(&manufacturer);
+    if (model.type() == VT_BSTR)
+      model_string += L" ";
+  }
+  if (model.type() == VT_BSTR)
+    model_string += V_BSTR(&model);
+
+  return model_string;
+}
+
 }  // namespace installer
diff --git a/chrome/installer/util/wmi.h b/chrome/installer/util/wmi.h
index 5d0a1a9..03106dc 100644
--- a/chrome/installer/util/wmi.h
+++ b/chrome/installer/util/wmi.h
@@ -21,6 +21,7 @@
 #define CHROME_INSTALLER_UTIL_WMI_H_
 #pragma once
 
+#include "base/string16.h"
 #include <string>
 #include <wbemidl.h>
 
@@ -73,6 +74,14 @@ class WMIProcess {
   static bool Launch(const std::wstring& command_line, int* process_id);
 };
 
+// This class contains functionality of the WMI class 'Win32_ComputerSystem'
+// more info: http://msdn.microsoft.com/en-us/library/aa394102(VS.85).aspx
+class WMIComputerSystem {
+ public:
+  // Returns a human readable string for the model/make of this computer.
+  static string16 GetModel();
+};
+
 }  // namespace installer
 
 #endif  // CHROME_INSTALLER_UTIL_WMI_H_