MinidumpProcessor should process all threads (#35). r=bryner

- MinidumpProcessor now processes all threads and returns a new ProcessState
   object.  (Interface change.)
 - ProcessState contains a CallStack for each thread in the process, and
   additional information about whether the process crashed, which thread
   crashed, the reason for the crash, and identifying attributes for the
   OS and CPU.
 - MinidumpSystemInfo now contains a GetCPUVendor() method that returns the
   vendor information from CPUID 0 on x86 processors ("GenuineIntel").

http://groups.google.com/group/airbag-dev/browse_thread/thread/16dd2c981e3361ba


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@47 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/processor/minidump.h

@@ -550,9 +550,16 @@ class MinidumpSystemInfo : public MinidumpStream {
       return valid_ ? &system_info_ : 0; }
 
   // I don't know what CSD stands for, but this field is documented as
-  // returning a textual representation of the OS service pack.
+  // returning a textual representation of the OS service pack.  On other
+  // platforms, this provides additional information about an OS version
+  // level beyond major.minor.micro.  Returns NULL if unknown.
   const string* GetCSDVersion();
 
+  // If a CPU vendor string can be determined, returns a pointer to it,
+  // otherwise, returns NULL.  CPU vendor strings can be determined from
+  // x86 CPUs with CPUID 0.
+  const string* GetCPUVendor();
+
   // Print a human-readable representation of the object to stdout.
   void Print();
 
@@ -569,7 +576,10 @@ class MinidumpSystemInfo : public MinidumpStream {
 
   // Textual representation of the OS service pack, for minidumps produced
   // by MiniDumpWriteDump on Windows.
-  const string*   csd_version_;
+  const string* csd_version_;
+
+  // A string identifying the CPU vendor, if known.
+  const string* cpu_vendor_;
 };